OGLE-ing the Magellanic System : RR Lyrae stars in the Bridge
We use the extended and updated Optical Gravitational Lensing Experiment (OGLE) Collection of Variable Stars to thoroughly analyze the distribution of RR Lyrae stars in the Magellanic Bridge. We use photometric metallicities to derive the absolute Wesenheit magnitude and individual distance of each...
Ausführliche Beschreibung
Autor*in: |
Jacyszyn-Dobrzeniecka, Anna M. [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2020 January 22 |
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Anmerkung: |
Gesehen am 28.04.2020 |
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Umfang: |
13 |
Übergeordnetes Werk: |
Enthalten in: The astrophysical journal - London : Institute of Physics Publ., 1995, 889(2020,1) Artikel-Nummer 26, 13 Seiten |
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Übergeordnetes Werk: |
volume:889 ; year:2020 ; number:1 ; extent:13 |
Links: |
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DOI / URN: |
10.3847/1538-4357/ab61f2 |
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Katalog-ID: |
1696302668 |
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10.3847/1538-4357/ab61f2 doi (DE-627)1696302668 (DE-599)KXP1696302668 (OCoLC)1341317142 DE-627 ger DE-627 rda eng Jacyszyn-Dobrzeniecka, Anna M. verfasserin (DE-588)1204861994 (DE-627)1690145293 aut OGLE-ing the Magellanic System RR Lyrae stars in the Bridge Anna M. Jacyszyn-Dobrzeniecka, Przemek Mróz, Katarzyna Kruszyńska, Igor Soszyński, Dorota M. Skowron, Andrzej Udalski, Michał K. Szymański, Patryk Iwanek, Jan Skowron, Paweł Pietrukowicz, Radosław Poleski, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof Rybicki, and Marcin Wrona 2020 January 22 13 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Gesehen am 28.04.2020 We use the extended and updated Optical Gravitational Lensing Experiment (OGLE) Collection of Variable Stars to thoroughly analyze the distribution of RR Lyrae stars in the Magellanic Bridge. We use photometric metallicities to derive the absolute Wesenheit magnitude and individual distance of each RR Lyrae star. We confirm results from our earlier study showing that RR Lyrae stars are present in between the Magellanic Clouds, though their three-dimensional distribution more resembles two extended overlapping structures than a strict bridge-like connection. The contours do connect in the southern parts of the Bridge, albeit on a level too low to state that an evident connection exists. To test the sample numerically, we use multi-Gaussian fitting and conclude that there is no additional population or overdensity located in the Bridge. We also try to reproduce results on the putative RR Lyrae Magellanic Bridge stream by selecting RR Lyrae candidates from Gaia Data Release 1. We show that we are not able to obtain the evident connection of the Clouds without many spurious sources in the sample, as the cuts are not able to remove artifacts without eliminating the evident connection at the same time. Moreover, for the first time, we present the Gaia Data Release 2 RR Lyrae stars in the Magellanic Bridge area and show that their distribution matches our results. Enthalten in The astrophysical journal London : Institute of Physics Publ., 1995 889(2020,1) Artikel-Nummer 26, 13 Seiten Online-Ressource (DE-627)269019219 (DE-600)1473835-1 (DE-576)077662733 1538-4357 nnns volume:889 year:2020 number:1 extent:13 https://doi.org/10.3847/1538-4357/ab61f2 Verlag Resolving-System 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_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4046 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 889 2020 1 13 889(2020,1) Artikel-Nummer 26, 13 Seiten 2013 01 DE-16-250 3639529391 00 --%%-- --%%-- --%%-- --%%-- l01 28-04-20 2013 01 DE-16-250 00 s hd2020 2013 01 DE-16-250 01 s (DE-627)1410508463 wissenschaftlicher Artikel (Zeitschrift) 2013 01 DE-16-250 02 s per_15 2013 01 DE-16-250 03 s s_13 2013 01 DE-16-250 04 p (DE-627)1690145536 Jacyszyn-Dobrzeniecka, Anna M. 2013 01 DE-16-250 04 k (DE-627)1428632549 SFB 881 The Milky Way Galaxy 2013 01 DE-16-250 04 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 04 s pos_1 |
spelling |
10.3847/1538-4357/ab61f2 doi (DE-627)1696302668 (DE-599)KXP1696302668 (OCoLC)1341317142 DE-627 ger DE-627 rda eng Jacyszyn-Dobrzeniecka, Anna M. verfasserin (DE-588)1204861994 (DE-627)1690145293 aut OGLE-ing the Magellanic System RR Lyrae stars in the Bridge Anna M. Jacyszyn-Dobrzeniecka, Przemek Mróz, Katarzyna Kruszyńska, Igor Soszyński, Dorota M. Skowron, Andrzej Udalski, Michał K. Szymański, Patryk Iwanek, Jan Skowron, Paweł Pietrukowicz, Radosław Poleski, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof Rybicki, and Marcin Wrona 2020 January 22 13 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Gesehen am 28.04.2020 We use the extended and updated Optical Gravitational Lensing Experiment (OGLE) Collection of Variable Stars to thoroughly analyze the distribution of RR Lyrae stars in the Magellanic Bridge. We use photometric metallicities to derive the absolute Wesenheit magnitude and individual distance of each RR Lyrae star. We confirm results from our earlier study showing that RR Lyrae stars are present in between the Magellanic Clouds, though their three-dimensional distribution more resembles two extended overlapping structures than a strict bridge-like connection. The contours do connect in the southern parts of the Bridge, albeit on a level too low to state that an evident connection exists. To test the sample numerically, we use multi-Gaussian fitting and conclude that there is no additional population or overdensity located in the Bridge. We also try to reproduce results on the putative RR Lyrae Magellanic Bridge stream by selecting RR Lyrae candidates from Gaia Data Release 1. We show that we are not able to obtain the evident connection of the Clouds without many spurious sources in the sample, as the cuts are not able to remove artifacts without eliminating the evident connection at the same time. Moreover, for the first time, we present the Gaia Data Release 2 RR Lyrae stars in the Magellanic Bridge area and show that their distribution matches our results. Enthalten in The astrophysical journal London : Institute of Physics Publ., 1995 889(2020,1) Artikel-Nummer 26, 13 Seiten Online-Ressource (DE-627)269019219 (DE-600)1473835-1 (DE-576)077662733 1538-4357 nnns volume:889 year:2020 number:1 extent:13 https://doi.org/10.3847/1538-4357/ab61f2 Verlag Resolving-System 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_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4046 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 889 2020 1 13 889(2020,1) Artikel-Nummer 26, 13 Seiten 2013 01 DE-16-250 3639529391 00 --%%-- --%%-- --%%-- --%%-- l01 28-04-20 2013 01 DE-16-250 00 s hd2020 2013 01 DE-16-250 01 s (DE-627)1410508463 wissenschaftlicher Artikel (Zeitschrift) 2013 01 DE-16-250 02 s per_15 2013 01 DE-16-250 03 s s_13 2013 01 DE-16-250 04 p (DE-627)1690145536 Jacyszyn-Dobrzeniecka, Anna M. 2013 01 DE-16-250 04 k (DE-627)1428632549 SFB 881 The Milky Way Galaxy 2013 01 DE-16-250 04 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 04 s pos_1 |
allfields_unstemmed |
10.3847/1538-4357/ab61f2 doi (DE-627)1696302668 (DE-599)KXP1696302668 (OCoLC)1341317142 DE-627 ger DE-627 rda eng Jacyszyn-Dobrzeniecka, Anna M. verfasserin (DE-588)1204861994 (DE-627)1690145293 aut OGLE-ing the Magellanic System RR Lyrae stars in the Bridge Anna M. Jacyszyn-Dobrzeniecka, Przemek Mróz, Katarzyna Kruszyńska, Igor Soszyński, Dorota M. Skowron, Andrzej Udalski, Michał K. Szymański, Patryk Iwanek, Jan Skowron, Paweł Pietrukowicz, Radosław Poleski, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof Rybicki, and Marcin Wrona 2020 January 22 13 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Gesehen am 28.04.2020 We use the extended and updated Optical Gravitational Lensing Experiment (OGLE) Collection of Variable Stars to thoroughly analyze the distribution of RR Lyrae stars in the Magellanic Bridge. We use photometric metallicities to derive the absolute Wesenheit magnitude and individual distance of each RR Lyrae star. We confirm results from our earlier study showing that RR Lyrae stars are present in between the Magellanic Clouds, though their three-dimensional distribution more resembles two extended overlapping structures than a strict bridge-like connection. The contours do connect in the southern parts of the Bridge, albeit on a level too low to state that an evident connection exists. To test the sample numerically, we use multi-Gaussian fitting and conclude that there is no additional population or overdensity located in the Bridge. We also try to reproduce results on the putative RR Lyrae Magellanic Bridge stream by selecting RR Lyrae candidates from Gaia Data Release 1. We show that we are not able to obtain the evident connection of the Clouds without many spurious sources in the sample, as the cuts are not able to remove artifacts without eliminating the evident connection at the same time. Moreover, for the first time, we present the Gaia Data Release 2 RR Lyrae stars in the Magellanic Bridge area and show that their distribution matches our results. Enthalten in The astrophysical journal London : Institute of Physics Publ., 1995 889(2020,1) Artikel-Nummer 26, 13 Seiten Online-Ressource (DE-627)269019219 (DE-600)1473835-1 (DE-576)077662733 1538-4357 nnns volume:889 year:2020 number:1 extent:13 https://doi.org/10.3847/1538-4357/ab61f2 Verlag Resolving-System 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_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4046 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 889 2020 1 13 889(2020,1) Artikel-Nummer 26, 13 Seiten 2013 01 DE-16-250 3639529391 00 --%%-- --%%-- --%%-- --%%-- l01 28-04-20 2013 01 DE-16-250 00 s hd2020 2013 01 DE-16-250 01 s (DE-627)1410508463 wissenschaftlicher Artikel (Zeitschrift) 2013 01 DE-16-250 02 s per_15 2013 01 DE-16-250 03 s s_13 2013 01 DE-16-250 04 p (DE-627)1690145536 Jacyszyn-Dobrzeniecka, Anna M. 2013 01 DE-16-250 04 k (DE-627)1428632549 SFB 881 The Milky Way Galaxy 2013 01 DE-16-250 04 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 04 s pos_1 |
allfieldsGer |
10.3847/1538-4357/ab61f2 doi (DE-627)1696302668 (DE-599)KXP1696302668 (OCoLC)1341317142 DE-627 ger DE-627 rda eng Jacyszyn-Dobrzeniecka, Anna M. verfasserin (DE-588)1204861994 (DE-627)1690145293 aut OGLE-ing the Magellanic System RR Lyrae stars in the Bridge Anna M. Jacyszyn-Dobrzeniecka, Przemek Mróz, Katarzyna Kruszyńska, Igor Soszyński, Dorota M. Skowron, Andrzej Udalski, Michał K. Szymański, Patryk Iwanek, Jan Skowron, Paweł Pietrukowicz, Radosław Poleski, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof Rybicki, and Marcin Wrona 2020 January 22 13 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Gesehen am 28.04.2020 We use the extended and updated Optical Gravitational Lensing Experiment (OGLE) Collection of Variable Stars to thoroughly analyze the distribution of RR Lyrae stars in the Magellanic Bridge. We use photometric metallicities to derive the absolute Wesenheit magnitude and individual distance of each RR Lyrae star. We confirm results from our earlier study showing that RR Lyrae stars are present in between the Magellanic Clouds, though their three-dimensional distribution more resembles two extended overlapping structures than a strict bridge-like connection. The contours do connect in the southern parts of the Bridge, albeit on a level too low to state that an evident connection exists. To test the sample numerically, we use multi-Gaussian fitting and conclude that there is no additional population or overdensity located in the Bridge. We also try to reproduce results on the putative RR Lyrae Magellanic Bridge stream by selecting RR Lyrae candidates from Gaia Data Release 1. We show that we are not able to obtain the evident connection of the Clouds without many spurious sources in the sample, as the cuts are not able to remove artifacts without eliminating the evident connection at the same time. Moreover, for the first time, we present the Gaia Data Release 2 RR Lyrae stars in the Magellanic Bridge area and show that their distribution matches our results. Enthalten in The astrophysical journal London : Institute of Physics Publ., 1995 889(2020,1) Artikel-Nummer 26, 13 Seiten Online-Ressource (DE-627)269019219 (DE-600)1473835-1 (DE-576)077662733 1538-4357 nnns volume:889 year:2020 number:1 extent:13 https://doi.org/10.3847/1538-4357/ab61f2 Verlag Resolving-System 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_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4046 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 889 2020 1 13 889(2020,1) Artikel-Nummer 26, 13 Seiten 2013 01 DE-16-250 3639529391 00 --%%-- --%%-- --%%-- --%%-- l01 28-04-20 2013 01 DE-16-250 00 s hd2020 2013 01 DE-16-250 01 s (DE-627)1410508463 wissenschaftlicher Artikel (Zeitschrift) 2013 01 DE-16-250 02 s per_15 2013 01 DE-16-250 03 s s_13 2013 01 DE-16-250 04 p (DE-627)1690145536 Jacyszyn-Dobrzeniecka, Anna M. 2013 01 DE-16-250 04 k (DE-627)1428632549 SFB 881 The Milky Way Galaxy 2013 01 DE-16-250 04 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 04 s pos_1 |
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10.3847/1538-4357/ab61f2 doi (DE-627)1696302668 (DE-599)KXP1696302668 (OCoLC)1341317142 DE-627 ger DE-627 rda eng Jacyszyn-Dobrzeniecka, Anna M. verfasserin (DE-588)1204861994 (DE-627)1690145293 aut OGLE-ing the Magellanic System RR Lyrae stars in the Bridge Anna M. Jacyszyn-Dobrzeniecka, Przemek Mróz, Katarzyna Kruszyńska, Igor Soszyński, Dorota M. Skowron, Andrzej Udalski, Michał K. Szymański, Patryk Iwanek, Jan Skowron, Paweł Pietrukowicz, Radosław Poleski, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof Rybicki, and Marcin Wrona 2020 January 22 13 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Gesehen am 28.04.2020 We use the extended and updated Optical Gravitational Lensing Experiment (OGLE) Collection of Variable Stars to thoroughly analyze the distribution of RR Lyrae stars in the Magellanic Bridge. We use photometric metallicities to derive the absolute Wesenheit magnitude and individual distance of each RR Lyrae star. We confirm results from our earlier study showing that RR Lyrae stars are present in between the Magellanic Clouds, though their three-dimensional distribution more resembles two extended overlapping structures than a strict bridge-like connection. The contours do connect in the southern parts of the Bridge, albeit on a level too low to state that an evident connection exists. To test the sample numerically, we use multi-Gaussian fitting and conclude that there is no additional population or overdensity located in the Bridge. We also try to reproduce results on the putative RR Lyrae Magellanic Bridge stream by selecting RR Lyrae candidates from Gaia Data Release 1. We show that we are not able to obtain the evident connection of the Clouds without many spurious sources in the sample, as the cuts are not able to remove artifacts without eliminating the evident connection at the same time. Moreover, for the first time, we present the Gaia Data Release 2 RR Lyrae stars in the Magellanic Bridge area and show that their distribution matches our results. Enthalten in The astrophysical journal London : Institute of Physics Publ., 1995 889(2020,1) Artikel-Nummer 26, 13 Seiten Online-Ressource (DE-627)269019219 (DE-600)1473835-1 (DE-576)077662733 1538-4357 nnns volume:889 year:2020 number:1 extent:13 https://doi.org/10.3847/1538-4357/ab61f2 Verlag Resolving-System 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_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2014 GBV_ILN_2088 GBV_ILN_2190 GBV_ILN_2522 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4046 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 889 2020 1 13 889(2020,1) Artikel-Nummer 26, 13 Seiten 2013 01 DE-16-250 3639529391 00 --%%-- --%%-- --%%-- --%%-- l01 28-04-20 2013 01 DE-16-250 00 s hd2020 2013 01 DE-16-250 01 s (DE-627)1410508463 wissenschaftlicher Artikel (Zeitschrift) 2013 01 DE-16-250 02 s per_15 2013 01 DE-16-250 03 s s_13 2013 01 DE-16-250 04 p (DE-627)1690145536 Jacyszyn-Dobrzeniecka, Anna M. 2013 01 DE-16-250 04 k (DE-627)1428632549 SFB 881 The Milky Way Galaxy 2013 01 DE-16-250 04 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 04 s pos_1 |
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2013 01 DE-16-250 00 s hd2020 2013 01 DE-16-250 01 s (DE-627)1410508463 wissenschaftlicher Artikel (Zeitschrift) 2013 01 DE-16-250 02 s per_15 2013 01 DE-16-250 03 s s_13 2013 01 DE-16-250 04 p (DE-627)1690145536 Jacyszyn-Dobrzeniecka, Anna M. 2013 01 DE-16-250 04 k (DE-627)1428632549 SFB 881 The Milky Way Galaxy 2013 01 DE-16-250 04 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 04 s pos_1 OGLE-ing the Magellanic System RR Lyrae stars in the Bridge Anna M. Jacyszyn-Dobrzeniecka, Przemek Mróz, Katarzyna Kruszyńska, Igor Soszyński, Dorota M. Skowron, Andrzej Udalski, Michał K. Szymański, Patryk Iwanek, Jan Skowron, Paweł Pietrukowicz, Radosław Poleski, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof Rybicki, and Marcin Wrona |
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2013 hd2020 2013 wissenschaftlicher Artikel (Zeitschrift) 2013 per_15 2013 s_13 2013 Jacyszyn-Dobrzeniecka, Anna M. 2013 SFB 881 The Milky Way Galaxy 2013 Verfasser 2013 pos_1 |
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OGLE-ing the Magellanic System RR Lyrae stars in the Bridge |
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OGLE-ing the Magellanic System RR Lyrae stars in the Bridge Anna M. Jacyszyn-Dobrzeniecka, Przemek Mróz, Katarzyna Kruszyńska, Igor Soszyński, Dorota M. Skowron, Andrzej Udalski, Michał K. Szymański, Patryk Iwanek, Jan Skowron, Paweł Pietrukowicz, Radosław Poleski, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof Rybicki, and Marcin Wrona |
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OGLE-ing the Magellanic System RR Lyrae stars in the Bridge |
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We use the extended and updated Optical Gravitational Lensing Experiment (OGLE) Collection of Variable Stars to thoroughly analyze the distribution of RR Lyrae stars in the Magellanic Bridge. We use photometric metallicities to derive the absolute Wesenheit magnitude and individual distance of each RR Lyrae star. We confirm results from our earlier study showing that RR Lyrae stars are present in between the Magellanic Clouds, though their three-dimensional distribution more resembles two extended overlapping structures than a strict bridge-like connection. The contours do connect in the southern parts of the Bridge, albeit on a level too low to state that an evident connection exists. To test the sample numerically, we use multi-Gaussian fitting and conclude that there is no additional population or overdensity located in the Bridge. We also try to reproduce results on the putative RR Lyrae Magellanic Bridge stream by selecting RR Lyrae candidates from Gaia Data Release 1. We show that we are not able to obtain the evident connection of the Clouds without many spurious sources in the sample, as the cuts are not able to remove artifacts without eliminating the evident connection at the same time. Moreover, for the first time, we present the Gaia Data Release 2 RR Lyrae stars in the Magellanic Bridge area and show that their distribution matches our results. Gesehen am 28.04.2020 |
abstractGer |
We use the extended and updated Optical Gravitational Lensing Experiment (OGLE) Collection of Variable Stars to thoroughly analyze the distribution of RR Lyrae stars in the Magellanic Bridge. We use photometric metallicities to derive the absolute Wesenheit magnitude and individual distance of each RR Lyrae star. We confirm results from our earlier study showing that RR Lyrae stars are present in between the Magellanic Clouds, though their three-dimensional distribution more resembles two extended overlapping structures than a strict bridge-like connection. The contours do connect in the southern parts of the Bridge, albeit on a level too low to state that an evident connection exists. To test the sample numerically, we use multi-Gaussian fitting and conclude that there is no additional population or overdensity located in the Bridge. We also try to reproduce results on the putative RR Lyrae Magellanic Bridge stream by selecting RR Lyrae candidates from Gaia Data Release 1. We show that we are not able to obtain the evident connection of the Clouds without many spurious sources in the sample, as the cuts are not able to remove artifacts without eliminating the evident connection at the same time. Moreover, for the first time, we present the Gaia Data Release 2 RR Lyrae stars in the Magellanic Bridge area and show that their distribution matches our results. Gesehen am 28.04.2020 |
abstract_unstemmed |
We use the extended and updated Optical Gravitational Lensing Experiment (OGLE) Collection of Variable Stars to thoroughly analyze the distribution of RR Lyrae stars in the Magellanic Bridge. We use photometric metallicities to derive the absolute Wesenheit magnitude and individual distance of each RR Lyrae star. We confirm results from our earlier study showing that RR Lyrae stars are present in between the Magellanic Clouds, though their three-dimensional distribution more resembles two extended overlapping structures than a strict bridge-like connection. The contours do connect in the southern parts of the Bridge, albeit on a level too low to state that an evident connection exists. To test the sample numerically, we use multi-Gaussian fitting and conclude that there is no additional population or overdensity located in the Bridge. We also try to reproduce results on the putative RR Lyrae Magellanic Bridge stream by selecting RR Lyrae candidates from Gaia Data Release 1. We show that we are not able to obtain the evident connection of the Clouds without many spurious sources in the sample, as the cuts are not able to remove artifacts without eliminating the evident connection at the same time. Moreover, for the first time, we present the Gaia Data Release 2 RR Lyrae stars in the Magellanic Bridge area and show that their distribution matches our results. Gesehen am 28.04.2020 |
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