MOA-2019-BLG-008Lb : a new microlensing detection of an object at the planet/brown dwarf boundary
We report on the observations, analysis and interpretation of the microlensing event MOA-2019-BLG-008. The observed anomaly in the photometric light curve is best described through a binary lens model. In this model, the source did not cross caustics and no finite-source effects were observed. There...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Bachelet, Etienne [verfasserIn] Tsapras, Yiannis - 1975- [verfasserIn] Gould, Andrew [verfasserIn] Street, R. A. [verfasserIn] Bennett, David P. [verfasserIn] Hundertmark, Markus [verfasserIn] Bozza, V. [verfasserIn] Bramich, D. M. [verfasserIn] Cassan, A. [verfasserIn] Dominik, M. [verfasserIn] Horne, K. [verfasserIn] Mao, S. [verfasserIn] Saha, A. [verfasserIn] Wambsganß, Joachim - 1961- [verfasserIn] Zang, Weicheng [verfasserIn] Abe, Fumio [verfasserIn] Barry, Richard [verfasserIn] Bhattacharya, Aparna [verfasserIn] Bond, Ian A. [verfasserIn] Fukui, Akihiko [verfasserIn] Fujii, Hirosane [verfasserIn] Hirao, Yuki [verfasserIn] Itow, Yoshitaka [verfasserIn] Kirikawa, Rintaro [verfasserIn] Kondo, Iona [verfasserIn] Koshimoto, Naoki [verfasserIn] Matsubara, Yutaka [verfasserIn] Matsumoto, Sho [verfasserIn] Miyazaki, Shota [verfasserIn] Muraki, Yasushi [verfasserIn] Olmschenk, Greg [verfasserIn] Ranc, Clément [verfasserIn] Okamura, Arisa [verfasserIn] Rattenbury, Nicholas J. [verfasserIn] Satoh, Yuki K. [verfasserIn] Sumi, Takahiro [verfasserIn] Suzuki, Daisuke [verfasserIn] Silva, Stela Ishitani [verfasserIn] Toda, Taiga [verfasserIn] Tristram, Paul J. [verfasserIn] Vandorou, Aikaterini [verfasserIn] Yama, Hibiki [verfasserIn] Albrow, Michael D. [verfasserIn] Chung, Sun-Ju [verfasserIn] Han, Cheongho [verfasserIn] Hwang, Kyu-Ha [verfasserIn] Jung, Youn Kil [verfasserIn] Ryu, Yoon-Hyun [verfasserIn] Shin, In-Gu [verfasserIn] Shvartzvald, Yossi [verfasserIn] Yee, Jennifer C. [verfasserIn] Cha, Sang-Mok [verfasserIn] Kim, Dong-Jin [verfasserIn] Kim, Seung-Lee [verfasserIn] Lee, Chung-Uk [verfasserIn] Lee, Dong-Joo [verfasserIn] Lee, Yongseok [verfasserIn] Park, Byeong-Gon [verfasserIn] Pogge, Richard W. [verfasserIn] Udalski, Andrzej [verfasserIn] Mróz, Przemek [verfasserIn] Poleski, Radosław [verfasserIn] Skowron, Jan [verfasserIn] Szymański, Michał K. [verfasserIn] Soszyński, Igor [verfasserIn] Pietrukowicz, Paweł [verfasserIn] Kozłowski, Szymon [verfasserIn] Ulaczyk, Krzysztof [verfasserIn] Rybicki, Krzysztof A. [verfasserIn] Iwanek, Patryk [verfasserIn] Wrona, Marcin [verfasserIn] Gromadzki, Mariusz [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022 August 2 |
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| Anmerkung: |
Gesehen am 06.03.2023 |
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| Umfang: |
16 |
| Übergeordnetes Werk: |
Enthalten in: The astronomical journal - Washington, DC : AAS Publishing, American Astronomical Society, 1998, 164(2022), 3, Artikel-ID 75, Seite 1-16 |
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| Übergeordnetes Werk: |
volume:164 ; year:2022 ; number:3 ; elocationid:75 ; pages:1-16 ; extent:16 |
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| DOI / URN: |
10.3847/1538-3881/ac78ed |
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| Katalog-ID: |
1838217614 |
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| 100 | 1 | |a Bachelet, Etienne |e verfasserin |0 (DE-588)1175983780 |0 (DE-627)1047116405 |0 (DE-576)516461052 |4 aut | |
| 245 | 1 | 0 | |a MOA-2019-BLG-008Lb |b a new microlensing detection of an object at the planet/brown dwarf boundary |c E. Bachelet, Y. Tsapras, Andrew Gould, R.A. Street, David P. Bennett, M.P.G. Hundertmark, V. Bozza, D.M. Bramich, A. Cassan, M. Dominik, K. Horne, S. Mao, A. Saha, J. Wambsganss, Weicheng Zang, (The ROME/REA Collaboration), Fumio Abe, Richard Barry, David P. Bennett, Aparna Bhattacharya, Ian A. Bond, Akihiko Fukui, Hirosane Fujii, Yuki Hirao, Yoshitaka Itow, Rintaro Kirikawa, Iona Kondo, Naoki Koshimoto, Yutaka Matsubara, Sho Matsumoto, Shota Miyazaki, Yasushi Muraki, Greg Olmschenk, Clément Ranc, Arisa Okamura, Nicholas J. Rattenbury, Yuki Satoh, Takahiro Sumi, Daisuke Suzuki, Stela Ishitani Silva, Taiga Toda, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama (The MOA Collaboration), Michael D. Albrow, Sun-Ju Chung, Cheongho Han, Kyu-Ha Hwang, Youn Kil Jung, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, Jennifer C. Yee, Sang-Mok Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge (The KMTNet Collaboration), and Andrzej Udalski, Przemek Mróz, Radosław Poleski, Jan Skowron, Michał K. Szymański, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof A. Rybicki, Patryk Iwanek, Marcin Wrona, and Mariusz Gromadzki (The OGLE Collaboration) |
| 264 | 1 | |c 2022 August 2 | |
| 300 | |a 16 | ||
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| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Gesehen am 06.03.2023 | ||
| 520 | |a We report on the observations, analysis and interpretation of the microlensing event MOA-2019-BLG-008. The observed anomaly in the photometric light curve is best described through a binary lens model. In this model, the source did not cross caustics and no finite-source effects were observed. Therefore, the angular Einstein ring radius θ E cannot be measured from the light curve alone. However, the large event duration, t E ∼ 80 days, allows a precise measurement of the microlensing parallax π E. In addition to the constraints on the angular radius θ * and the apparent brightness I s of the source, we employ the Besançon and GalMod galactic models to estimate the physical properties of the lens. We find excellent agreement between the predictions of the two galactic models: the companion is likely a resident of the brown dwarf desert with a mass M p ∼ 30 M Jup, and the host is a main-sequence dwarf star. The lens lies along the line of sight to the Galactic bulge, at a distance of ≤4 kpc. We estimate that in about 10 yr the lens and source will be separated by ∼55 mas, and it will be possible to confirm the exact nature of the lensing system by using high-resolution imaging from ground- or space-based observatories. | ||
| 700 | 1 | |a Tsapras, Yiannis |d 1975- |e verfasserin |0 (DE-588)1093855932 |0 (DE-627)853882037 |0 (DE-576)407996400 |4 aut | |
| 700 | 1 | |a Gould, Andrew |e verfasserin |4 aut | |
| 700 | 1 | |a Street, R. A. |e verfasserin |4 aut | |
| 700 | 1 | |a Bennett, David P. |e verfasserin |0 (DE-588)1283262819 |0 (DE-627)1839065133 |4 aut | |
| 700 | 1 | |a Hundertmark, Markus |e verfasserin |0 (DE-588)1138794627 |0 (DE-627)896371042 |0 (DE-576)492681937 |4 aut | |
| 700 | 1 | |a Bozza, V. |e verfasserin |4 aut | |
| 700 | 1 | |a Bramich, D. M. |e verfasserin |4 aut | |
| 700 | 1 | |a Cassan, A. |e verfasserin |4 aut | |
| 700 | 1 | |a Dominik, M. |e verfasserin |4 aut | |
| 700 | 1 | |a Horne, K. |e verfasserin |4 aut | |
| 700 | 1 | |a Mao, S. |e verfasserin |4 aut | |
| 700 | 1 | |a Saha, A. |e verfasserin |4 aut | |
| 700 | 1 | |a Wambsganß, Joachim |d 1961- |e verfasserin |0 (DE-588)122246861 |0 (DE-627)081826931 |0 (DE-576)293172137 |4 aut | |
| 700 | 1 | |a Zang, Weicheng |e verfasserin |4 aut | |
| 700 | 1 | |a Abe, Fumio |e verfasserin |4 aut | |
| 700 | 1 | |a Barry, Richard |e verfasserin |4 aut | |
| 700 | 1 | |a Bennett, David P. |e verfasserin |4 aut | |
| 700 | 1 | |a Bhattacharya, Aparna |e verfasserin |4 aut | |
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| 700 | 1 | |a Sumi, Takahiro |e verfasserin |4 aut | |
| 700 | 1 | |a Suzuki, Daisuke |e verfasserin |4 aut | |
| 700 | 1 | |a Silva, Stela Ishitani |e verfasserin |4 aut | |
| 700 | 1 | |a Toda, Taiga |e verfasserin |4 aut | |
| 700 | 1 | |a Tristram, Paul J. |e verfasserin |4 aut | |
| 700 | 1 | |a Vandorou, Aikaterini |e verfasserin |4 aut | |
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| 700 | 1 | |a Albrow, Michael D. |e verfasserin |4 aut | |
| 700 | 1 | |a Chung, Sun-Ju |e verfasserin |4 aut | |
| 700 | 1 | |a Han, Cheongho |e verfasserin |4 aut | |
| 700 | 1 | |a Hwang, Kyu-Ha |e verfasserin |4 aut | |
| 700 | 1 | |a Jung, Youn Kil |e verfasserin |4 aut | |
| 700 | 1 | |a Ryu, Yoon-Hyun |e verfasserin |4 aut | |
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| 700 | 1 | |a Shvartzvald, Yossi |e verfasserin |4 aut | |
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| 700 | 1 | |a Kim, Seung-Lee |e verfasserin |4 aut | |
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| 700 | 1 | |a Udalski, Andrzej |e verfasserin |4 aut | |
| 700 | 1 | |a Mróz, Przemek |e verfasserin |4 aut | |
| 700 | 1 | |a Poleski, Radosław |e verfasserin |4 aut | |
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| 700 | 1 | |a Soszyński, Igor |e verfasserin |4 aut | |
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10.3847/1538-3881/ac78ed doi (DE-627)1838217614 (DE-599)KXP1838217614 (OCoLC)1389534409 DE-627 ger DE-627 rda eng Bachelet, Etienne verfasserin (DE-588)1175983780 (DE-627)1047116405 (DE-576)516461052 aut MOA-2019-BLG-008Lb a new microlensing detection of an object at the planet/brown dwarf boundary E. Bachelet, Y. Tsapras, Andrew Gould, R.A. Street, David P. Bennett, M.P.G. Hundertmark, V. Bozza, D.M. Bramich, A. Cassan, M. Dominik, K. Horne, S. Mao, A. Saha, J. Wambsganss, Weicheng Zang, (The ROME/REA Collaboration), Fumio Abe, Richard Barry, David P. Bennett, Aparna Bhattacharya, Ian A. Bond, Akihiko Fukui, Hirosane Fujii, Yuki Hirao, Yoshitaka Itow, Rintaro Kirikawa, Iona Kondo, Naoki Koshimoto, Yutaka Matsubara, Sho Matsumoto, Shota Miyazaki, Yasushi Muraki, Greg Olmschenk, Clément Ranc, Arisa Okamura, Nicholas J. Rattenbury, Yuki Satoh, Takahiro Sumi, Daisuke Suzuki, Stela Ishitani Silva, Taiga Toda, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama (The MOA Collaboration), Michael D. Albrow, Sun-Ju Chung, Cheongho Han, Kyu-Ha Hwang, Youn Kil Jung, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, Jennifer C. Yee, Sang-Mok Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge (The KMTNet Collaboration), and Andrzej Udalski, Przemek Mróz, Radosław Poleski, Jan Skowron, Michał K. Szymański, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof A. Rybicki, Patryk Iwanek, Marcin Wrona, and Mariusz Gromadzki (The OGLE Collaboration) 2022 August 2 16 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Gesehen am 06.03.2023 We report on the observations, analysis and interpretation of the microlensing event MOA-2019-BLG-008. The observed anomaly in the photometric light curve is best described through a binary lens model. In this model, the source did not cross caustics and no finite-source effects were observed. Therefore, the angular Einstein ring radius θ E cannot be measured from the light curve alone. However, the large event duration, t E ∼ 80 days, allows a precise measurement of the microlensing parallax π E. In addition to the constraints on the angular radius θ * and the apparent brightness I s of the source, we employ the Besançon and GalMod galactic models to estimate the physical properties of the lens. We find excellent agreement between the predictions of the two galactic models: the companion is likely a resident of the brown dwarf desert with a mass M p ∼ 30 M Jup, and the host is a main-sequence dwarf star. The lens lies along the line of sight to the Galactic bulge, at a distance of ≤4 kpc. We estimate that in about 10 yr the lens and source will be separated by ∼55 mas, and it will be possible to confirm the exact nature of the lensing system by using high-resolution imaging from ground- or space-based observatories. Tsapras, Yiannis 1975- verfasserin (DE-588)1093855932 (DE-627)853882037 (DE-576)407996400 aut Gould, Andrew verfasserin aut Street, R. A. verfasserin aut Bennett, David P. verfasserin (DE-588)1283262819 (DE-627)1839065133 aut Hundertmark, Markus verfasserin (DE-588)1138794627 (DE-627)896371042 (DE-576)492681937 aut Bozza, V. verfasserin aut Bramich, D. M. verfasserin aut Cassan, A. verfasserin aut Dominik, M. verfasserin aut Horne, K. verfasserin aut Mao, S. verfasserin aut Saha, A. verfasserin aut Wambsganß, Joachim 1961- verfasserin (DE-588)122246861 (DE-627)081826931 (DE-576)293172137 aut Zang, Weicheng verfasserin aut Abe, Fumio verfasserin aut Barry, Richard verfasserin aut Bennett, David P. verfasserin aut Bhattacharya, Aparna verfasserin aut Bond, Ian A. verfasserin aut Fukui, Akihiko verfasserin aut Fujii, Hirosane verfasserin aut Hirao, Yuki verfasserin aut Itow, Yoshitaka verfasserin aut Kirikawa, Rintaro verfasserin aut Kondo, Iona verfasserin aut Koshimoto, Naoki verfasserin aut Matsubara, Yutaka verfasserin aut Matsumoto, Sho verfasserin aut Miyazaki, Shota verfasserin aut Muraki, Yasushi verfasserin aut Olmschenk, Greg verfasserin aut Ranc, Clément verfasserin aut Okamura, Arisa verfasserin aut Rattenbury, Nicholas J. verfasserin aut Satoh, Yuki K. verfasserin (DE-588)1315041014 (DE-627)1877269689 aut Sumi, Takahiro verfasserin aut Suzuki, Daisuke verfasserin aut Silva, Stela Ishitani verfasserin aut Toda, Taiga verfasserin aut Tristram, Paul J. verfasserin aut Vandorou, Aikaterini verfasserin aut Yama, Hibiki verfasserin aut Albrow, Michael D. verfasserin aut Chung, Sun-Ju verfasserin aut Han, Cheongho verfasserin aut Hwang, Kyu-Ha verfasserin aut Jung, Youn Kil verfasserin aut Ryu, Yoon-Hyun verfasserin aut Shin, In-Gu verfasserin aut Shvartzvald, Yossi verfasserin aut Yee, Jennifer C. verfasserin aut Cha, Sang-Mok verfasserin aut Kim, Dong-Jin verfasserin aut Kim, Seung-Lee verfasserin aut Lee, Chung-Uk verfasserin aut Lee, Dong-Joo verfasserin aut Lee, Yongseok verfasserin aut Park, Byeong-Gon verfasserin aut Pogge, Richard W. verfasserin aut Udalski, Andrzej verfasserin aut Mróz, Przemek verfasserin aut Poleski, Radosław verfasserin aut Skowron, Jan verfasserin aut Szymański, Michał K. verfasserin aut Soszyński, Igor verfasserin aut Pietrukowicz, Paweł verfasserin aut Kozłowski, Szymon verfasserin aut Ulaczyk, Krzysztof verfasserin aut Rybicki, Krzysztof A. verfasserin aut Iwanek, Patryk verfasserin aut Wrona, Marcin verfasserin aut Gromadzki, Mariusz verfasserin aut Enthalten in The astronomical journal Washington, DC : AAS Publishing, American Astronomical Society, 1998 164(2022), 3, Artikel-ID 75, Seite 1-16 (DE-627)312175647 (DE-600)2003104-X (DE-576)090883306 1538-3881 nnns volume:164 year:2022 number:3 elocationid:75 pages:1-16 extent:16 https://doi.org/10.3847/1538-3881/ac78ed Verlag Resolving-System lizenzpflichtig Volltext https://dx.doi.org/10.3847/1538-3881/ac78ed Verlag lizenzpflichtig Volltext GBV_USEFLAG_U GBV_ILN_2013 ISIL_DE-16-250 SYSFLAG_1 GBV_KXP GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2006 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2110 GBV_ILN_2129 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 164 2022 3 75 1-16 16 2013 01 DE-16-250 428365437X 00 --%%-- --%%-- --%%-- --%%-- l01 06-03-23 2013 01 DE-16-250 00 s hd2022 2013 01 DE-16-250 01 s (DE-627)1410508463 wissenschaftlicher Artikel (Zeitschrift) 2013 01 DE-16-250 02 s per_73 2013 01 DE-16-250 03 s s_16 2013 01 DE-16-250 04 p (DE-627)1532838751 Tsapras, Yiannis 2013 01 DE-16-250 04 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 04 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 04 s pos_2 2013 01 DE-16-250 05 p (DE-627)1562690353 Hundertmark, Markus 2013 01 DE-16-250 05 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 05 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 05 s pos_6 2013 01 DE-16-250 06 p (DE-627)1428490795 Wambsganß, Joachim 2013 01 DE-16-250 06 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 06 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 06 s pos_14 |
| spelling |
10.3847/1538-3881/ac78ed doi (DE-627)1838217614 (DE-599)KXP1838217614 (OCoLC)1389534409 DE-627 ger DE-627 rda eng Bachelet, Etienne verfasserin (DE-588)1175983780 (DE-627)1047116405 (DE-576)516461052 aut MOA-2019-BLG-008Lb a new microlensing detection of an object at the planet/brown dwarf boundary E. Bachelet, Y. Tsapras, Andrew Gould, R.A. Street, David P. Bennett, M.P.G. Hundertmark, V. Bozza, D.M. Bramich, A. Cassan, M. Dominik, K. Horne, S. Mao, A. Saha, J. Wambsganss, Weicheng Zang, (The ROME/REA Collaboration), Fumio Abe, Richard Barry, David P. Bennett, Aparna Bhattacharya, Ian A. Bond, Akihiko Fukui, Hirosane Fujii, Yuki Hirao, Yoshitaka Itow, Rintaro Kirikawa, Iona Kondo, Naoki Koshimoto, Yutaka Matsubara, Sho Matsumoto, Shota Miyazaki, Yasushi Muraki, Greg Olmschenk, Clément Ranc, Arisa Okamura, Nicholas J. Rattenbury, Yuki Satoh, Takahiro Sumi, Daisuke Suzuki, Stela Ishitani Silva, Taiga Toda, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama (The MOA Collaboration), Michael D. Albrow, Sun-Ju Chung, Cheongho Han, Kyu-Ha Hwang, Youn Kil Jung, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, Jennifer C. Yee, Sang-Mok Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge (The KMTNet Collaboration), and Andrzej Udalski, Przemek Mróz, Radosław Poleski, Jan Skowron, Michał K. Szymański, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof A. Rybicki, Patryk Iwanek, Marcin Wrona, and Mariusz Gromadzki (The OGLE Collaboration) 2022 August 2 16 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Gesehen am 06.03.2023 We report on the observations, analysis and interpretation of the microlensing event MOA-2019-BLG-008. The observed anomaly in the photometric light curve is best described through a binary lens model. In this model, the source did not cross caustics and no finite-source effects were observed. Therefore, the angular Einstein ring radius θ E cannot be measured from the light curve alone. However, the large event duration, t E ∼ 80 days, allows a precise measurement of the microlensing parallax π E. In addition to the constraints on the angular radius θ * and the apparent brightness I s of the source, we employ the Besançon and GalMod galactic models to estimate the physical properties of the lens. We find excellent agreement between the predictions of the two galactic models: the companion is likely a resident of the brown dwarf desert with a mass M p ∼ 30 M Jup, and the host is a main-sequence dwarf star. The lens lies along the line of sight to the Galactic bulge, at a distance of ≤4 kpc. We estimate that in about 10 yr the lens and source will be separated by ∼55 mas, and it will be possible to confirm the exact nature of the lensing system by using high-resolution imaging from ground- or space-based observatories. Tsapras, Yiannis 1975- verfasserin (DE-588)1093855932 (DE-627)853882037 (DE-576)407996400 aut Gould, Andrew verfasserin aut Street, R. A. verfasserin aut Bennett, David P. verfasserin (DE-588)1283262819 (DE-627)1839065133 aut Hundertmark, Markus verfasserin (DE-588)1138794627 (DE-627)896371042 (DE-576)492681937 aut Bozza, V. verfasserin aut Bramich, D. M. verfasserin aut Cassan, A. verfasserin aut Dominik, M. verfasserin aut Horne, K. verfasserin aut Mao, S. verfasserin aut Saha, A. verfasserin aut Wambsganß, Joachim 1961- verfasserin (DE-588)122246861 (DE-627)081826931 (DE-576)293172137 aut Zang, Weicheng verfasserin aut Abe, Fumio verfasserin aut Barry, Richard verfasserin aut Bennett, David P. verfasserin aut Bhattacharya, Aparna verfasserin aut Bond, Ian A. verfasserin aut Fukui, Akihiko verfasserin aut Fujii, Hirosane verfasserin aut Hirao, Yuki verfasserin aut Itow, Yoshitaka verfasserin aut Kirikawa, Rintaro verfasserin aut Kondo, Iona verfasserin aut Koshimoto, Naoki verfasserin aut Matsubara, Yutaka verfasserin aut Matsumoto, Sho verfasserin aut Miyazaki, Shota verfasserin aut Muraki, Yasushi verfasserin aut Olmschenk, Greg verfasserin aut Ranc, Clément verfasserin aut Okamura, Arisa verfasserin aut Rattenbury, Nicholas J. verfasserin aut Satoh, Yuki K. verfasserin (DE-588)1315041014 (DE-627)1877269689 aut Sumi, Takahiro verfasserin aut Suzuki, Daisuke verfasserin aut Silva, Stela Ishitani verfasserin aut Toda, Taiga verfasserin aut Tristram, Paul J. verfasserin aut Vandorou, Aikaterini verfasserin aut Yama, Hibiki verfasserin aut Albrow, Michael D. verfasserin aut Chung, Sun-Ju verfasserin aut Han, Cheongho verfasserin aut Hwang, Kyu-Ha verfasserin aut Jung, Youn Kil verfasserin aut Ryu, Yoon-Hyun verfasserin aut Shin, In-Gu verfasserin aut Shvartzvald, Yossi verfasserin aut Yee, Jennifer C. verfasserin aut Cha, Sang-Mok verfasserin aut Kim, Dong-Jin verfasserin aut Kim, Seung-Lee verfasserin aut Lee, Chung-Uk verfasserin aut Lee, Dong-Joo verfasserin aut Lee, Yongseok verfasserin aut Park, Byeong-Gon verfasserin aut Pogge, Richard W. verfasserin aut Udalski, Andrzej verfasserin aut Mróz, Przemek verfasserin aut Poleski, Radosław verfasserin aut Skowron, Jan verfasserin aut Szymański, Michał K. verfasserin aut Soszyński, Igor verfasserin aut Pietrukowicz, Paweł verfasserin aut Kozłowski, Szymon verfasserin aut Ulaczyk, Krzysztof verfasserin aut Rybicki, Krzysztof A. verfasserin aut Iwanek, Patryk verfasserin aut Wrona, Marcin verfasserin aut Gromadzki, Mariusz verfasserin aut Enthalten in The astronomical journal Washington, DC : AAS Publishing, American Astronomical Society, 1998 164(2022), 3, Artikel-ID 75, Seite 1-16 (DE-627)312175647 (DE-600)2003104-X (DE-576)090883306 1538-3881 nnns volume:164 year:2022 number:3 elocationid:75 pages:1-16 extent:16 https://doi.org/10.3847/1538-3881/ac78ed Verlag Resolving-System lizenzpflichtig Volltext https://dx.doi.org/10.3847/1538-3881/ac78ed Verlag lizenzpflichtig Volltext GBV_USEFLAG_U GBV_ILN_2013 ISIL_DE-16-250 SYSFLAG_1 GBV_KXP GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2006 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2110 GBV_ILN_2129 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 164 2022 3 75 1-16 16 2013 01 DE-16-250 428365437X 00 --%%-- --%%-- --%%-- --%%-- l01 06-03-23 2013 01 DE-16-250 00 s hd2022 2013 01 DE-16-250 01 s (DE-627)1410508463 wissenschaftlicher Artikel (Zeitschrift) 2013 01 DE-16-250 02 s per_73 2013 01 DE-16-250 03 s s_16 2013 01 DE-16-250 04 p (DE-627)1532838751 Tsapras, Yiannis 2013 01 DE-16-250 04 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 04 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 04 s pos_2 2013 01 DE-16-250 05 p (DE-627)1562690353 Hundertmark, Markus 2013 01 DE-16-250 05 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 05 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 05 s pos_6 2013 01 DE-16-250 06 p (DE-627)1428490795 Wambsganß, Joachim 2013 01 DE-16-250 06 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 06 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 06 s pos_14 |
| allfields_unstemmed |
10.3847/1538-3881/ac78ed doi (DE-627)1838217614 (DE-599)KXP1838217614 (OCoLC)1389534409 DE-627 ger DE-627 rda eng Bachelet, Etienne verfasserin (DE-588)1175983780 (DE-627)1047116405 (DE-576)516461052 aut MOA-2019-BLG-008Lb a new microlensing detection of an object at the planet/brown dwarf boundary E. Bachelet, Y. Tsapras, Andrew Gould, R.A. Street, David P. Bennett, M.P.G. Hundertmark, V. Bozza, D.M. Bramich, A. Cassan, M. Dominik, K. Horne, S. Mao, A. Saha, J. Wambsganss, Weicheng Zang, (The ROME/REA Collaboration), Fumio Abe, Richard Barry, David P. Bennett, Aparna Bhattacharya, Ian A. Bond, Akihiko Fukui, Hirosane Fujii, Yuki Hirao, Yoshitaka Itow, Rintaro Kirikawa, Iona Kondo, Naoki Koshimoto, Yutaka Matsubara, Sho Matsumoto, Shota Miyazaki, Yasushi Muraki, Greg Olmschenk, Clément Ranc, Arisa Okamura, Nicholas J. Rattenbury, Yuki Satoh, Takahiro Sumi, Daisuke Suzuki, Stela Ishitani Silva, Taiga Toda, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama (The MOA Collaboration), Michael D. Albrow, Sun-Ju Chung, Cheongho Han, Kyu-Ha Hwang, Youn Kil Jung, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, Jennifer C. Yee, Sang-Mok Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge (The KMTNet Collaboration), and Andrzej Udalski, Przemek Mróz, Radosław Poleski, Jan Skowron, Michał K. Szymański, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof A. Rybicki, Patryk Iwanek, Marcin Wrona, and Mariusz Gromadzki (The OGLE Collaboration) 2022 August 2 16 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Gesehen am 06.03.2023 We report on the observations, analysis and interpretation of the microlensing event MOA-2019-BLG-008. The observed anomaly in the photometric light curve is best described through a binary lens model. In this model, the source did not cross caustics and no finite-source effects were observed. Therefore, the angular Einstein ring radius θ E cannot be measured from the light curve alone. However, the large event duration, t E ∼ 80 days, allows a precise measurement of the microlensing parallax π E. In addition to the constraints on the angular radius θ * and the apparent brightness I s of the source, we employ the Besançon and GalMod galactic models to estimate the physical properties of the lens. We find excellent agreement between the predictions of the two galactic models: the companion is likely a resident of the brown dwarf desert with a mass M p ∼ 30 M Jup, and the host is a main-sequence dwarf star. The lens lies along the line of sight to the Galactic bulge, at a distance of ≤4 kpc. We estimate that in about 10 yr the lens and source will be separated by ∼55 mas, and it will be possible to confirm the exact nature of the lensing system by using high-resolution imaging from ground- or space-based observatories. Tsapras, Yiannis 1975- verfasserin (DE-588)1093855932 (DE-627)853882037 (DE-576)407996400 aut Gould, Andrew verfasserin aut Street, R. A. verfasserin aut Bennett, David P. verfasserin (DE-588)1283262819 (DE-627)1839065133 aut Hundertmark, Markus verfasserin (DE-588)1138794627 (DE-627)896371042 (DE-576)492681937 aut Bozza, V. verfasserin aut Bramich, D. M. verfasserin aut Cassan, A. verfasserin aut Dominik, M. verfasserin aut Horne, K. verfasserin aut Mao, S. verfasserin aut Saha, A. verfasserin aut Wambsganß, Joachim 1961- verfasserin (DE-588)122246861 (DE-627)081826931 (DE-576)293172137 aut Zang, Weicheng verfasserin aut Abe, Fumio verfasserin aut Barry, Richard verfasserin aut Bennett, David P. verfasserin aut Bhattacharya, Aparna verfasserin aut Bond, Ian A. verfasserin aut Fukui, Akihiko verfasserin aut Fujii, Hirosane verfasserin aut Hirao, Yuki verfasserin aut Itow, Yoshitaka verfasserin aut Kirikawa, Rintaro verfasserin aut Kondo, Iona verfasserin aut Koshimoto, Naoki verfasserin aut Matsubara, Yutaka verfasserin aut Matsumoto, Sho verfasserin aut Miyazaki, Shota verfasserin aut Muraki, Yasushi verfasserin aut Olmschenk, Greg verfasserin aut Ranc, Clément verfasserin aut Okamura, Arisa verfasserin aut Rattenbury, Nicholas J. verfasserin aut Satoh, Yuki K. verfasserin (DE-588)1315041014 (DE-627)1877269689 aut Sumi, Takahiro verfasserin aut Suzuki, Daisuke verfasserin aut Silva, Stela Ishitani verfasserin aut Toda, Taiga verfasserin aut Tristram, Paul J. verfasserin aut Vandorou, Aikaterini verfasserin aut Yama, Hibiki verfasserin aut Albrow, Michael D. verfasserin aut Chung, Sun-Ju verfasserin aut Han, Cheongho verfasserin aut Hwang, Kyu-Ha verfasserin aut Jung, Youn Kil verfasserin aut Ryu, Yoon-Hyun verfasserin aut Shin, In-Gu verfasserin aut Shvartzvald, Yossi verfasserin aut Yee, Jennifer C. verfasserin aut Cha, Sang-Mok verfasserin aut Kim, Dong-Jin verfasserin aut Kim, Seung-Lee verfasserin aut Lee, Chung-Uk verfasserin aut Lee, Dong-Joo verfasserin aut Lee, Yongseok verfasserin aut Park, Byeong-Gon verfasserin aut Pogge, Richard W. verfasserin aut Udalski, Andrzej verfasserin aut Mróz, Przemek verfasserin aut Poleski, Radosław verfasserin aut Skowron, Jan verfasserin aut Szymański, Michał K. verfasserin aut Soszyński, Igor verfasserin aut Pietrukowicz, Paweł verfasserin aut Kozłowski, Szymon verfasserin aut Ulaczyk, Krzysztof verfasserin aut Rybicki, Krzysztof A. verfasserin aut Iwanek, Patryk verfasserin aut Wrona, Marcin verfasserin aut Gromadzki, Mariusz verfasserin aut Enthalten in The astronomical journal Washington, DC : AAS Publishing, American Astronomical Society, 1998 164(2022), 3, Artikel-ID 75, Seite 1-16 (DE-627)312175647 (DE-600)2003104-X (DE-576)090883306 1538-3881 nnns volume:164 year:2022 number:3 elocationid:75 pages:1-16 extent:16 https://doi.org/10.3847/1538-3881/ac78ed Verlag Resolving-System lizenzpflichtig Volltext https://dx.doi.org/10.3847/1538-3881/ac78ed Verlag lizenzpflichtig Volltext GBV_USEFLAG_U GBV_ILN_2013 ISIL_DE-16-250 SYSFLAG_1 GBV_KXP GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2006 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2110 GBV_ILN_2129 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 164 2022 3 75 1-16 16 2013 01 DE-16-250 428365437X 00 --%%-- --%%-- --%%-- --%%-- l01 06-03-23 2013 01 DE-16-250 00 s hd2022 2013 01 DE-16-250 01 s (DE-627)1410508463 wissenschaftlicher Artikel (Zeitschrift) 2013 01 DE-16-250 02 s per_73 2013 01 DE-16-250 03 s s_16 2013 01 DE-16-250 04 p (DE-627)1532838751 Tsapras, Yiannis 2013 01 DE-16-250 04 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 04 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 04 s pos_2 2013 01 DE-16-250 05 p (DE-627)1562690353 Hundertmark, Markus 2013 01 DE-16-250 05 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 05 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 05 s pos_6 2013 01 DE-16-250 06 p (DE-627)1428490795 Wambsganß, Joachim 2013 01 DE-16-250 06 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 06 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 06 s pos_14 |
| allfieldsGer |
10.3847/1538-3881/ac78ed doi (DE-627)1838217614 (DE-599)KXP1838217614 (OCoLC)1389534409 DE-627 ger DE-627 rda eng Bachelet, Etienne verfasserin (DE-588)1175983780 (DE-627)1047116405 (DE-576)516461052 aut MOA-2019-BLG-008Lb a new microlensing detection of an object at the planet/brown dwarf boundary E. Bachelet, Y. Tsapras, Andrew Gould, R.A. Street, David P. Bennett, M.P.G. Hundertmark, V. Bozza, D.M. Bramich, A. Cassan, M. Dominik, K. Horne, S. Mao, A. Saha, J. Wambsganss, Weicheng Zang, (The ROME/REA Collaboration), Fumio Abe, Richard Barry, David P. Bennett, Aparna Bhattacharya, Ian A. Bond, Akihiko Fukui, Hirosane Fujii, Yuki Hirao, Yoshitaka Itow, Rintaro Kirikawa, Iona Kondo, Naoki Koshimoto, Yutaka Matsubara, Sho Matsumoto, Shota Miyazaki, Yasushi Muraki, Greg Olmschenk, Clément Ranc, Arisa Okamura, Nicholas J. Rattenbury, Yuki Satoh, Takahiro Sumi, Daisuke Suzuki, Stela Ishitani Silva, Taiga Toda, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama (The MOA Collaboration), Michael D. Albrow, Sun-Ju Chung, Cheongho Han, Kyu-Ha Hwang, Youn Kil Jung, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, Jennifer C. Yee, Sang-Mok Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge (The KMTNet Collaboration), and Andrzej Udalski, Przemek Mróz, Radosław Poleski, Jan Skowron, Michał K. Szymański, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof A. Rybicki, Patryk Iwanek, Marcin Wrona, and Mariusz Gromadzki (The OGLE Collaboration) 2022 August 2 16 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Gesehen am 06.03.2023 We report on the observations, analysis and interpretation of the microlensing event MOA-2019-BLG-008. The observed anomaly in the photometric light curve is best described through a binary lens model. In this model, the source did not cross caustics and no finite-source effects were observed. Therefore, the angular Einstein ring radius θ E cannot be measured from the light curve alone. However, the large event duration, t E ∼ 80 days, allows a precise measurement of the microlensing parallax π E. In addition to the constraints on the angular radius θ * and the apparent brightness I s of the source, we employ the Besançon and GalMod galactic models to estimate the physical properties of the lens. We find excellent agreement between the predictions of the two galactic models: the companion is likely a resident of the brown dwarf desert with a mass M p ∼ 30 M Jup, and the host is a main-sequence dwarf star. The lens lies along the line of sight to the Galactic bulge, at a distance of ≤4 kpc. We estimate that in about 10 yr the lens and source will be separated by ∼55 mas, and it will be possible to confirm the exact nature of the lensing system by using high-resolution imaging from ground- or space-based observatories. Tsapras, Yiannis 1975- verfasserin (DE-588)1093855932 (DE-627)853882037 (DE-576)407996400 aut Gould, Andrew verfasserin aut Street, R. A. verfasserin aut Bennett, David P. verfasserin (DE-588)1283262819 (DE-627)1839065133 aut Hundertmark, Markus verfasserin (DE-588)1138794627 (DE-627)896371042 (DE-576)492681937 aut Bozza, V. verfasserin aut Bramich, D. M. verfasserin aut Cassan, A. verfasserin aut Dominik, M. verfasserin aut Horne, K. verfasserin aut Mao, S. verfasserin aut Saha, A. verfasserin aut Wambsganß, Joachim 1961- verfasserin (DE-588)122246861 (DE-627)081826931 (DE-576)293172137 aut Zang, Weicheng verfasserin aut Abe, Fumio verfasserin aut Barry, Richard verfasserin aut Bennett, David P. verfasserin aut Bhattacharya, Aparna verfasserin aut Bond, Ian A. verfasserin aut Fukui, Akihiko verfasserin aut Fujii, Hirosane verfasserin aut Hirao, Yuki verfasserin aut Itow, Yoshitaka verfasserin aut Kirikawa, Rintaro verfasserin aut Kondo, Iona verfasserin aut Koshimoto, Naoki verfasserin aut Matsubara, Yutaka verfasserin aut Matsumoto, Sho verfasserin aut Miyazaki, Shota verfasserin aut Muraki, Yasushi verfasserin aut Olmschenk, Greg verfasserin aut Ranc, Clément verfasserin aut Okamura, Arisa verfasserin aut Rattenbury, Nicholas J. verfasserin aut Satoh, Yuki K. verfasserin (DE-588)1315041014 (DE-627)1877269689 aut Sumi, Takahiro verfasserin aut Suzuki, Daisuke verfasserin aut Silva, Stela Ishitani verfasserin aut Toda, Taiga verfasserin aut Tristram, Paul J. verfasserin aut Vandorou, Aikaterini verfasserin aut Yama, Hibiki verfasserin aut Albrow, Michael D. verfasserin aut Chung, Sun-Ju verfasserin aut Han, Cheongho verfasserin aut Hwang, Kyu-Ha verfasserin aut Jung, Youn Kil verfasserin aut Ryu, Yoon-Hyun verfasserin aut Shin, In-Gu verfasserin aut Shvartzvald, Yossi verfasserin aut Yee, Jennifer C. verfasserin aut Cha, Sang-Mok verfasserin aut Kim, Dong-Jin verfasserin aut Kim, Seung-Lee verfasserin aut Lee, Chung-Uk verfasserin aut Lee, Dong-Joo verfasserin aut Lee, Yongseok verfasserin aut Park, Byeong-Gon verfasserin aut Pogge, Richard W. verfasserin aut Udalski, Andrzej verfasserin aut Mróz, Przemek verfasserin aut Poleski, Radosław verfasserin aut Skowron, Jan verfasserin aut Szymański, Michał K. verfasserin aut Soszyński, Igor verfasserin aut Pietrukowicz, Paweł verfasserin aut Kozłowski, Szymon verfasserin aut Ulaczyk, Krzysztof verfasserin aut Rybicki, Krzysztof A. verfasserin aut Iwanek, Patryk verfasserin aut Wrona, Marcin verfasserin aut Gromadzki, Mariusz verfasserin aut Enthalten in The astronomical journal Washington, DC : AAS Publishing, American Astronomical Society, 1998 164(2022), 3, Artikel-ID 75, Seite 1-16 (DE-627)312175647 (DE-600)2003104-X (DE-576)090883306 1538-3881 nnns volume:164 year:2022 number:3 elocationid:75 pages:1-16 extent:16 https://doi.org/10.3847/1538-3881/ac78ed Verlag Resolving-System lizenzpflichtig Volltext https://dx.doi.org/10.3847/1538-3881/ac78ed Verlag lizenzpflichtig Volltext GBV_USEFLAG_U GBV_ILN_2013 ISIL_DE-16-250 SYSFLAG_1 GBV_KXP GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2006 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2110 GBV_ILN_2129 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 164 2022 3 75 1-16 16 2013 01 DE-16-250 428365437X 00 --%%-- --%%-- --%%-- --%%-- l01 06-03-23 2013 01 DE-16-250 00 s hd2022 2013 01 DE-16-250 01 s (DE-627)1410508463 wissenschaftlicher Artikel (Zeitschrift) 2013 01 DE-16-250 02 s per_73 2013 01 DE-16-250 03 s s_16 2013 01 DE-16-250 04 p (DE-627)1532838751 Tsapras, Yiannis 2013 01 DE-16-250 04 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 04 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 04 s pos_2 2013 01 DE-16-250 05 p (DE-627)1562690353 Hundertmark, Markus 2013 01 DE-16-250 05 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 05 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 05 s pos_6 2013 01 DE-16-250 06 p (DE-627)1428490795 Wambsganß, Joachim 2013 01 DE-16-250 06 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 06 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 06 s pos_14 |
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10.3847/1538-3881/ac78ed doi (DE-627)1838217614 (DE-599)KXP1838217614 (OCoLC)1389534409 DE-627 ger DE-627 rda eng Bachelet, Etienne verfasserin (DE-588)1175983780 (DE-627)1047116405 (DE-576)516461052 aut MOA-2019-BLG-008Lb a new microlensing detection of an object at the planet/brown dwarf boundary E. Bachelet, Y. Tsapras, Andrew Gould, R.A. Street, David P. Bennett, M.P.G. Hundertmark, V. Bozza, D.M. Bramich, A. Cassan, M. Dominik, K. Horne, S. Mao, A. Saha, J. Wambsganss, Weicheng Zang, (The ROME/REA Collaboration), Fumio Abe, Richard Barry, David P. Bennett, Aparna Bhattacharya, Ian A. Bond, Akihiko Fukui, Hirosane Fujii, Yuki Hirao, Yoshitaka Itow, Rintaro Kirikawa, Iona Kondo, Naoki Koshimoto, Yutaka Matsubara, Sho Matsumoto, Shota Miyazaki, Yasushi Muraki, Greg Olmschenk, Clément Ranc, Arisa Okamura, Nicholas J. Rattenbury, Yuki Satoh, Takahiro Sumi, Daisuke Suzuki, Stela Ishitani Silva, Taiga Toda, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama (The MOA Collaboration), Michael D. Albrow, Sun-Ju Chung, Cheongho Han, Kyu-Ha Hwang, Youn Kil Jung, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, Jennifer C. Yee, Sang-Mok Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge (The KMTNet Collaboration), and Andrzej Udalski, Przemek Mróz, Radosław Poleski, Jan Skowron, Michał K. Szymański, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof A. Rybicki, Patryk Iwanek, Marcin Wrona, and Mariusz Gromadzki (The OGLE Collaboration) 2022 August 2 16 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Gesehen am 06.03.2023 We report on the observations, analysis and interpretation of the microlensing event MOA-2019-BLG-008. The observed anomaly in the photometric light curve is best described through a binary lens model. In this model, the source did not cross caustics and no finite-source effects were observed. Therefore, the angular Einstein ring radius θ E cannot be measured from the light curve alone. However, the large event duration, t E ∼ 80 days, allows a precise measurement of the microlensing parallax π E. In addition to the constraints on the angular radius θ * and the apparent brightness I s of the source, we employ the Besançon and GalMod galactic models to estimate the physical properties of the lens. We find excellent agreement between the predictions of the two galactic models: the companion is likely a resident of the brown dwarf desert with a mass M p ∼ 30 M Jup, and the host is a main-sequence dwarf star. The lens lies along the line of sight to the Galactic bulge, at a distance of ≤4 kpc. We estimate that in about 10 yr the lens and source will be separated by ∼55 mas, and it will be possible to confirm the exact nature of the lensing system by using high-resolution imaging from ground- or space-based observatories. Tsapras, Yiannis 1975- verfasserin (DE-588)1093855932 (DE-627)853882037 (DE-576)407996400 aut Gould, Andrew verfasserin aut Street, R. A. verfasserin aut Bennett, David P. verfasserin (DE-588)1283262819 (DE-627)1839065133 aut Hundertmark, Markus verfasserin (DE-588)1138794627 (DE-627)896371042 (DE-576)492681937 aut Bozza, V. verfasserin aut Bramich, D. M. verfasserin aut Cassan, A. verfasserin aut Dominik, M. verfasserin aut Horne, K. verfasserin aut Mao, S. verfasserin aut Saha, A. verfasserin aut Wambsganß, Joachim 1961- verfasserin (DE-588)122246861 (DE-627)081826931 (DE-576)293172137 aut Zang, Weicheng verfasserin aut Abe, Fumio verfasserin aut Barry, Richard verfasserin aut Bennett, David P. verfasserin aut Bhattacharya, Aparna verfasserin aut Bond, Ian A. verfasserin aut Fukui, Akihiko verfasserin aut Fujii, Hirosane verfasserin aut Hirao, Yuki verfasserin aut Itow, Yoshitaka verfasserin aut Kirikawa, Rintaro verfasserin aut Kondo, Iona verfasserin aut Koshimoto, Naoki verfasserin aut Matsubara, Yutaka verfasserin aut Matsumoto, Sho verfasserin aut Miyazaki, Shota verfasserin aut Muraki, Yasushi verfasserin aut Olmschenk, Greg verfasserin aut Ranc, Clément verfasserin aut Okamura, Arisa verfasserin aut Rattenbury, Nicholas J. verfasserin aut Satoh, Yuki K. verfasserin (DE-588)1315041014 (DE-627)1877269689 aut Sumi, Takahiro verfasserin aut Suzuki, Daisuke verfasserin aut Silva, Stela Ishitani verfasserin aut Toda, Taiga verfasserin aut Tristram, Paul J. verfasserin aut Vandorou, Aikaterini verfasserin aut Yama, Hibiki verfasserin aut Albrow, Michael D. verfasserin aut Chung, Sun-Ju verfasserin aut Han, Cheongho verfasserin aut Hwang, Kyu-Ha verfasserin aut Jung, Youn Kil verfasserin aut Ryu, Yoon-Hyun verfasserin aut Shin, In-Gu verfasserin aut Shvartzvald, Yossi verfasserin aut Yee, Jennifer C. verfasserin aut Cha, Sang-Mok verfasserin aut Kim, Dong-Jin verfasserin aut Kim, Seung-Lee verfasserin aut Lee, Chung-Uk verfasserin aut Lee, Dong-Joo verfasserin aut Lee, Yongseok verfasserin aut Park, Byeong-Gon verfasserin aut Pogge, Richard W. verfasserin aut Udalski, Andrzej verfasserin aut Mróz, Przemek verfasserin aut Poleski, Radosław verfasserin aut Skowron, Jan verfasserin aut Szymański, Michał K. verfasserin aut Soszyński, Igor verfasserin aut Pietrukowicz, Paweł verfasserin aut Kozłowski, Szymon verfasserin aut Ulaczyk, Krzysztof verfasserin aut Rybicki, Krzysztof A. verfasserin aut Iwanek, Patryk verfasserin aut Wrona, Marcin verfasserin aut Gromadzki, Mariusz verfasserin aut Enthalten in The astronomical journal Washington, DC : AAS Publishing, American Astronomical Society, 1998 164(2022), 3, Artikel-ID 75, Seite 1-16 (DE-627)312175647 (DE-600)2003104-X (DE-576)090883306 1538-3881 nnns volume:164 year:2022 number:3 elocationid:75 pages:1-16 extent:16 https://doi.org/10.3847/1538-3881/ac78ed Verlag Resolving-System lizenzpflichtig Volltext https://dx.doi.org/10.3847/1538-3881/ac78ed Verlag lizenzpflichtig Volltext GBV_USEFLAG_U GBV_ILN_2013 ISIL_DE-16-250 SYSFLAG_1 GBV_KXP GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2006 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2110 GBV_ILN_2129 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 164 2022 3 75 1-16 16 2013 01 DE-16-250 428365437X 00 --%%-- --%%-- --%%-- --%%-- l01 06-03-23 2013 01 DE-16-250 00 s hd2022 2013 01 DE-16-250 01 s (DE-627)1410508463 wissenschaftlicher Artikel (Zeitschrift) 2013 01 DE-16-250 02 s per_73 2013 01 DE-16-250 03 s s_16 2013 01 DE-16-250 04 p (DE-627)1532838751 Tsapras, Yiannis 2013 01 DE-16-250 04 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 04 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 04 s pos_2 2013 01 DE-16-250 05 p (DE-627)1562690353 Hundertmark, Markus 2013 01 DE-16-250 05 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 05 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 05 s pos_6 2013 01 DE-16-250 06 p (DE-627)1428490795 Wambsganß, Joachim 2013 01 DE-16-250 06 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 06 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 06 s pos_14 |
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Bachelet, Etienne @@aut@@ Tsapras, Yiannis @@aut@@ Gould, Andrew @@aut@@ Street, R. A. @@aut@@ Bennett, David P. @@aut@@ Hundertmark, Markus @@aut@@ Bozza, V. @@aut@@ Bramich, D. M. @@aut@@ Cassan, A. @@aut@@ Dominik, M. @@aut@@ Horne, K. @@aut@@ Mao, S. @@aut@@ Saha, A. @@aut@@ Wambsganß, Joachim @@aut@@ Zang, Weicheng @@aut@@ Abe, Fumio @@aut@@ Barry, Richard @@aut@@ Bhattacharya, Aparna @@aut@@ Bond, Ian A. @@aut@@ Fukui, Akihiko @@aut@@ Fujii, Hirosane @@aut@@ Hirao, Yuki @@aut@@ Itow, Yoshitaka @@aut@@ Kirikawa, Rintaro @@aut@@ Kondo, Iona @@aut@@ Koshimoto, Naoki @@aut@@ Matsubara, Yutaka @@aut@@ Matsumoto, Sho @@aut@@ Miyazaki, Shota @@aut@@ Muraki, Yasushi @@aut@@ Olmschenk, Greg @@aut@@ Ranc, Clément @@aut@@ Okamura, Arisa @@aut@@ Rattenbury, Nicholas J. @@aut@@ Satoh, Yuki K. @@aut@@ Sumi, Takahiro @@aut@@ Suzuki, Daisuke @@aut@@ Silva, Stela Ishitani @@aut@@ Toda, Taiga @@aut@@ Tristram, Paul J. @@aut@@ Vandorou, Aikaterini @@aut@@ Yama, Hibiki @@aut@@ Albrow, Michael D. @@aut@@ Chung, Sun-Ju @@aut@@ Han, Cheongho @@aut@@ Hwang, Kyu-Ha @@aut@@ Jung, Youn Kil @@aut@@ Ryu, Yoon-Hyun @@aut@@ Shin, In-Gu @@aut@@ Shvartzvald, Yossi @@aut@@ Yee, Jennifer C. @@aut@@ Cha, Sang-Mok @@aut@@ Kim, Dong-Jin @@aut@@ Kim, Seung-Lee @@aut@@ Lee, Chung-Uk @@aut@@ Lee, Dong-Joo @@aut@@ Lee, Yongseok @@aut@@ Park, Byeong-Gon @@aut@@ Pogge, Richard W. @@aut@@ Udalski, Andrzej @@aut@@ Mróz, Przemek @@aut@@ Poleski, Radosław @@aut@@ Skowron, Jan @@aut@@ Szymański, Michał K. @@aut@@ Soszyński, Igor @@aut@@ Pietrukowicz, Paweł @@aut@@ Kozłowski, Szymon @@aut@@ Ulaczyk, Krzysztof @@aut@@ Rybicki, Krzysztof A. @@aut@@ Iwanek, Patryk @@aut@@ Wrona, Marcin @@aut@@ Gromadzki, Mariusz @@aut@@ |
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Bachelet, Y. Tsapras, Andrew Gould, R.A. Street, David P. Bennett, M.P.G. Hundertmark, V. Bozza, D.M. Bramich, A. Cassan, M. Dominik, K. Horne, S. Mao, A. Saha, J. Wambsganss, Weicheng Zang, (The ROME/REA Collaboration), Fumio Abe, Richard Barry, David P. Bennett, Aparna Bhattacharya, Ian A. Bond, Akihiko Fukui, Hirosane Fujii, Yuki Hirao, Yoshitaka Itow, Rintaro Kirikawa, Iona Kondo, Naoki Koshimoto, Yutaka Matsubara, Sho Matsumoto, Shota Miyazaki, Yasushi Muraki, Greg Olmschenk, Clément Ranc, Arisa Okamura, Nicholas J. Rattenbury, Yuki Satoh, Takahiro Sumi, Daisuke Suzuki, Stela Ishitani Silva, Taiga Toda, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama (The MOA Collaboration), Michael D. Albrow, Sun-Ju Chung, Cheongho Han, Kyu-Ha Hwang, Youn Kil Jung, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, Jennifer C. Yee, Sang-Mok Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge (The KMTNet Collaboration), and Andrzej Udalski, Przemek Mróz, Radosław Poleski, Jan Skowron, Michał K. Szymański, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof A. Rybicki, Patryk Iwanek, Marcin Wrona, and Mariusz Gromadzki (The OGLE Collaboration)</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2022 August 2</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">16</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">Gesehen am 06.03.2023</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">We report on the observations, analysis and interpretation of the microlensing event MOA-2019-BLG-008. The observed anomaly in the photometric light curve is best described through a binary lens model. In this model, the source did not cross caustics and no finite-source effects were observed. Therefore, the angular Einstein ring radius θ E cannot be measured from the light curve alone. However, the large event duration, t E ∼ 80 days, allows a precise measurement of the microlensing parallax π E. In addition to the constraints on the angular radius θ * and the apparent brightness I s of the source, we employ the Besançon and GalMod galactic models to estimate the physical properties of the lens. We find excellent agreement between the predictions of the two galactic models: the companion is likely a resident of the brown dwarf desert with a mass M p ∼ 30 M Jup, and the host is a main-sequence dwarf star. The lens lies along the line of sight to the Galactic bulge, at a distance of ≤4 kpc. We estimate that in about 10 yr the lens and source will be separated by ∼55 mas, and it will be possible to confirm the exact nature of the lensing system by using high-resolution imaging from ground- or space-based observatories.</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Tsapras, Yiannis</subfield><subfield code="d">1975-</subfield><subfield code="e">verfasserin</subfield><subfield code="0">(DE-588)1093855932</subfield><subfield code="0">(DE-627)853882037</subfield><subfield code="0">(DE-576)407996400</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gould, Andrew</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Street, R. 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MOA-2019-BLG-008Lb a new microlensing detection of an object at the planet/brown dwarf boundary |
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MOA-2019-BLG-008Lb a new microlensing detection of an object at the planet/brown dwarf boundary E. Bachelet, Y. Tsapras, Andrew Gould, R.A. Street, David P. Bennett, M.P.G. Hundertmark, V. Bozza, D.M. Bramich, A. Cassan, M. Dominik, K. Horne, S. Mao, A. Saha, J. Wambsganss, Weicheng Zang, (The ROME/REA Collaboration), Fumio Abe, Richard Barry, David P. Bennett, Aparna Bhattacharya, Ian A. Bond, Akihiko Fukui, Hirosane Fujii, Yuki Hirao, Yoshitaka Itow, Rintaro Kirikawa, Iona Kondo, Naoki Koshimoto, Yutaka Matsubara, Sho Matsumoto, Shota Miyazaki, Yasushi Muraki, Greg Olmschenk, Clément Ranc, Arisa Okamura, Nicholas J. Rattenbury, Yuki Satoh, Takahiro Sumi, Daisuke Suzuki, Stela Ishitani Silva, Taiga Toda, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama (The MOA Collaboration), Michael D. Albrow, Sun-Ju Chung, Cheongho Han, Kyu-Ha Hwang, Youn Kil Jung, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, Jennifer C. Yee, Sang-Mok Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge (The KMTNet Collaboration), and Andrzej Udalski, Przemek Mróz, Radosław Poleski, Jan Skowron, Michał K. Szymański, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof A. Rybicki, Patryk Iwanek, Marcin Wrona, and Mariusz Gromadzki (The OGLE Collaboration) |
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moa-2019-blg-008lba new microlensing detection of an object at the planet/brown dwarf boundary |
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MOA-2019-BLG-008Lb a new microlensing detection of an object at the planet/brown dwarf boundary |
| abstract |
We report on the observations, analysis and interpretation of the microlensing event MOA-2019-BLG-008. The observed anomaly in the photometric light curve is best described through a binary lens model. In this model, the source did not cross caustics and no finite-source effects were observed. Therefore, the angular Einstein ring radius θ E cannot be measured from the light curve alone. However, the large event duration, t E ∼ 80 days, allows a precise measurement of the microlensing parallax π E. In addition to the constraints on the angular radius θ * and the apparent brightness I s of the source, we employ the Besançon and GalMod galactic models to estimate the physical properties of the lens. We find excellent agreement between the predictions of the two galactic models: the companion is likely a resident of the brown dwarf desert with a mass M p ∼ 30 M Jup, and the host is a main-sequence dwarf star. The lens lies along the line of sight to the Galactic bulge, at a distance of ≤4 kpc. We estimate that in about 10 yr the lens and source will be separated by ∼55 mas, and it will be possible to confirm the exact nature of the lensing system by using high-resolution imaging from ground- or space-based observatories. Gesehen am 06.03.2023 |
| abstractGer |
We report on the observations, analysis and interpretation of the microlensing event MOA-2019-BLG-008. The observed anomaly in the photometric light curve is best described through a binary lens model. In this model, the source did not cross caustics and no finite-source effects were observed. Therefore, the angular Einstein ring radius θ E cannot be measured from the light curve alone. However, the large event duration, t E ∼ 80 days, allows a precise measurement of the microlensing parallax π E. In addition to the constraints on the angular radius θ * and the apparent brightness I s of the source, we employ the Besançon and GalMod galactic models to estimate the physical properties of the lens. We find excellent agreement between the predictions of the two galactic models: the companion is likely a resident of the brown dwarf desert with a mass M p ∼ 30 M Jup, and the host is a main-sequence dwarf star. The lens lies along the line of sight to the Galactic bulge, at a distance of ≤4 kpc. We estimate that in about 10 yr the lens and source will be separated by ∼55 mas, and it will be possible to confirm the exact nature of the lensing system by using high-resolution imaging from ground- or space-based observatories. Gesehen am 06.03.2023 |
| abstract_unstemmed |
We report on the observations, analysis and interpretation of the microlensing event MOA-2019-BLG-008. The observed anomaly in the photometric light curve is best described through a binary lens model. In this model, the source did not cross caustics and no finite-source effects were observed. Therefore, the angular Einstein ring radius θ E cannot be measured from the light curve alone. However, the large event duration, t E ∼ 80 days, allows a precise measurement of the microlensing parallax π E. In addition to the constraints on the angular radius θ * and the apparent brightness I s of the source, we employ the Besançon and GalMod galactic models to estimate the physical properties of the lens. We find excellent agreement between the predictions of the two galactic models: the companion is likely a resident of the brown dwarf desert with a mass M p ∼ 30 M Jup, and the host is a main-sequence dwarf star. The lens lies along the line of sight to the Galactic bulge, at a distance of ≤4 kpc. We estimate that in about 10 yr the lens and source will be separated by ∼55 mas, and it will be possible to confirm the exact nature of the lensing system by using high-resolution imaging from ground- or space-based observatories. Gesehen am 06.03.2023 |
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Tsapras, Yiannis 1975- Gould, Andrew Street, R. A. Bennett, David P. Hundertmark, Markus Bozza, V. Bramich, D. M. Cassan, A. Dominik, M. Horne, K. Mao, S. Saha, A. Wambsganß, Joachim 1961- Zang, Weicheng Abe, Fumio Barry, Richard Bhattacharya, Aparna Bond, Ian A. Fukui, Akihiko Fujii, Hirosane Hirao, Yuki Itow, Yoshitaka Kirikawa, Rintaro Kondo, Iona Koshimoto, Naoki Matsubara, Yutaka Matsumoto, Sho Miyazaki, Shota Muraki, Yasushi Olmschenk, Greg Ranc, Clément Okamura, Arisa Rattenbury, Nicholas J. Satoh, Yuki K. Sumi, Takahiro Suzuki, Daisuke Silva, Stela Ishitani Toda, Taiga Tristram, Paul J. Vandorou, Aikaterini Yama, Hibiki Albrow, Michael D. Chung, Sun-Ju Han, Cheongho Hwang, Kyu-Ha Jung, Youn Kil Ryu, Yoon-Hyun Shin, In-Gu Shvartzvald, Yossi Yee, Jennifer C. Cha, Sang-Mok Kim, Dong-Jin Kim, Seung-Lee Lee, Chung-Uk Lee, Dong-Joo Lee, Yongseok Park, Byeong-Gon Pogge, Richard W. Udalski, Andrzej Mróz, Przemek Poleski, Radosław Skowron, Jan Szymański, Michał K. Soszyński, Igor Pietrukowicz, Paweł Kozłowski, Szymon Ulaczyk, Krzysztof Rybicki, Krzysztof A. Iwanek, Patryk Wrona, Marcin Gromadzki, Mariusz |
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Tsapras, Yiannis 1975- Gould, Andrew Street, R. A. Bennett, David P. Hundertmark, Markus Bozza, V. Bramich, D. M. Cassan, A. Dominik, M. Horne, K. Mao, S. Saha, A. Wambsganß, Joachim 1961- Zang, Weicheng Abe, Fumio Barry, Richard Bhattacharya, Aparna Bond, Ian A. Fukui, Akihiko Fujii, Hirosane Hirao, Yuki Itow, Yoshitaka Kirikawa, Rintaro Kondo, Iona Koshimoto, Naoki Matsubara, Yutaka Matsumoto, Sho Miyazaki, Shota Muraki, Yasushi Olmschenk, Greg Ranc, Clément Okamura, Arisa Rattenbury, Nicholas J. Satoh, Yuki K. Sumi, Takahiro Suzuki, Daisuke Silva, Stela Ishitani Toda, Taiga Tristram, Paul J. Vandorou, Aikaterini Yama, Hibiki Albrow, Michael D. Chung, Sun-Ju Han, Cheongho Hwang, Kyu-Ha Jung, Youn Kil Ryu, Yoon-Hyun Shin, In-Gu Shvartzvald, Yossi Yee, Jennifer C. Cha, Sang-Mok Kim, Dong-Jin Kim, Seung-Lee Lee, Chung-Uk Lee, Dong-Joo Lee, Yongseok Park, Byeong-Gon Pogge, Richard W. Udalski, Andrzej Mróz, Przemek Poleski, Radosław Skowron, Jan Szymański, Michał K. Soszyński, Igor Pietrukowicz, Paweł Kozłowski, Szymon Ulaczyk, Krzysztof Rybicki, Krzysztof A. Iwanek, Patryk Wrona, Marcin Gromadzki, Mariusz |
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Bachelet, E. Bachelet, Etienne Tsapras, Y. Tsapras, Yiannis Bennett, D. P. Bennett, David Bennett, David P. Hundertmark, M. P. G. Hundertmark, M. Hundertmark, Markus P. G. Hundertmark, Markus Wambsganss, J. Wambsganß, Joachim Satoh, Yuki Satoh, Yuki K. |
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Bachelet, E. Bachelet, Etienne Tsapras, Y. Tsapras, Yiannis Bennett, D. P. Bennett, David Bennett, David P. Hundertmark, M. P. G. Hundertmark, M. Hundertmark, Markus P. G. Hundertmark, Markus Wambsganss, J. Wambsganß, Joachim Satoh, Yuki Satoh, Yuki K. |
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Bachelet, E. Bachelet, Etienne Tsapras, Y. Tsapras, Yiannis Bennett, D. P. Bennett, David Bennett, David P. Hundertmark, M. P. G. Hundertmark, M. Hundertmark, Markus P. G. Hundertmark, Markus Wambsganss, J. Wambsganß, Joachim Satoh, Yuki Satoh, Yuki K. |
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10.3847/1538-3881/ac78ed |
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2024-07-04T19:23:59.191Z |
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Bachelet, Y. Tsapras, Andrew Gould, R.A. Street, David P. Bennett, M.P.G. Hundertmark, V. Bozza, D.M. Bramich, A. Cassan, M. Dominik, K. Horne, S. Mao, A. Saha, J. Wambsganss, Weicheng Zang, (The ROME/REA Collaboration), Fumio Abe, Richard Barry, David P. Bennett, Aparna Bhattacharya, Ian A. Bond, Akihiko Fukui, Hirosane Fujii, Yuki Hirao, Yoshitaka Itow, Rintaro Kirikawa, Iona Kondo, Naoki Koshimoto, Yutaka Matsubara, Sho Matsumoto, Shota Miyazaki, Yasushi Muraki, Greg Olmschenk, Clément Ranc, Arisa Okamura, Nicholas J. Rattenbury, Yuki Satoh, Takahiro Sumi, Daisuke Suzuki, Stela Ishitani Silva, Taiga Toda, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama (The MOA Collaboration), Michael D. Albrow, Sun-Ju Chung, Cheongho Han, Kyu-Ha Hwang, Youn Kil Jung, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, Jennifer C. Yee, Sang-Mok Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge (The KMTNet Collaboration), and Andrzej Udalski, Przemek Mróz, Radosław Poleski, Jan Skowron, Michał K. Szymański, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof A. Rybicki, Patryk Iwanek, Marcin Wrona, and Mariusz Gromadzki (The OGLE Collaboration)</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2022 August 2</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">16</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">Gesehen am 06.03.2023</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">We report on the observations, analysis and interpretation of the microlensing event MOA-2019-BLG-008. The observed anomaly in the photometric light curve is best described through a binary lens model. In this model, the source did not cross caustics and no finite-source effects were observed. Therefore, the angular Einstein ring radius θ E cannot be measured from the light curve alone. However, the large event duration, t E ∼ 80 days, allows a precise measurement of the microlensing parallax π E. In addition to the constraints on the angular radius θ * and the apparent brightness I s of the source, we employ the Besançon and GalMod galactic models to estimate the physical properties of the lens. We find excellent agreement between the predictions of the two galactic models: the companion is likely a resident of the brown dwarf desert with a mass M p ∼ 30 M Jup, and the host is a main-sequence dwarf star. The lens lies along the line of sight to the Galactic bulge, at a distance of ≤4 kpc. 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