Discovery of Merging Twin Quasars at z = 6.05

We report the discovery of two quasars at a redshift of z = 6.05 in the process of merging. They were serendipitously discovered from the deep multiband imaging data collected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. The quasars, HSC J121503.42−014858.7 (C1) and HSC J121503.55...
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Autor*in:	Yoshiki Matsuoka [verfasserIn] Takuma Izumi [verfasserIn] Masafusa Onoue [verfasserIn] Michael A. Strauss [verfasserIn] Kazushi Iwasawa [verfasserIn] Nobunari Kashikawa [verfasserIn] Masayuki Akiyama [verfasserIn] Kentaro Aoki [verfasserIn] Junya Arita [verfasserIn] Masatoshi Imanishi [verfasserIn] Rikako Ishimoto [verfasserIn] Toshihiro Kawaguchi [verfasserIn] Kotaro Kohno [verfasserIn] Chien-Hsiu Lee [verfasserIn] Tohru Nagao [verfasserIn] John D. Silverman [verfasserIn] Yoshiki Toba [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2024

Schlagwörter:	Double quasars Quasars Reionization High-redshift galaxies Active galactic nuclei Galaxy mergers

Übergeordnetes Werk:	In: The Astrophysical Journal Letters - IOP Publishing, 2022, 965(2024), 1, p L4
Übergeordnetes Werk:	volume:965 ; year:2024 ; number:1, p L4

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3847/2041-8213/ad35c7

Katalog-ID:	DOAJ092501761

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700	0		\|a Yoshiki Toba \|e verfasserin \|4 aut
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allfields	10.3847/2041-8213/ad35c7 doi (DE-627)DOAJ092501761 (DE-599)DOAJ213483deef95490b82e7f2c75e4f0c89 DE-627 ger DE-627 rakwb eng QB460-466 Yoshiki Matsuoka verfasserin aut Discovery of Merging Twin Quasars at z = 6.05 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We report the discovery of two quasars at a redshift of z = 6.05 in the process of merging. They were serendipitously discovered from the deep multiband imaging data collected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. The quasars, HSC J121503.42−014858.7 (C1) and HSC J121503.55−014859.3 (C2), both have luminous (<10 ^43 erg s ^−1 ) Ly α emission with a clear broad component (full width at half maximum <1000 km s ^−1 ). The rest-frame ultraviolet (UV) absolute magnitudes are M _1450 = − 23.106 ± 0.017 (C1) and −22.662 ± 0.024 (C2). Our crude estimates of the black hole masses provide $\mathrm{log}({M}_{\mathrm{BH}}/{M}_{\odot })=8.1\pm 0.3$ in both sources. The two quasars are separated by 12 kpc in projected proper distance, bridged by a structure in the rest-UV light suggesting that they are undergoing a merger. This pair is one of the most distant merging quasars reported to date, providing crucial insight into galaxy and black hole build-up in the hierarchical structure formation scenario. A companion paper will present the gas and dust properties captured by Atacama Large Millimeter/submillimeter Array observations, which provide additional evidence for and detailed measurements of the merger, and also demonstrate that the two sources are not gravitationally lensed images of a single quasar. Double quasars Quasars Reionization High-redshift galaxies Active galactic nuclei Galaxy mergers Astrophysics Takuma Izumi verfasserin aut Masafusa Onoue verfasserin aut Michael A. Strauss verfasserin aut Kazushi Iwasawa verfasserin aut Nobunari Kashikawa verfasserin aut Masayuki Akiyama verfasserin aut Kentaro Aoki verfasserin aut Junya Arita verfasserin aut Masatoshi Imanishi verfasserin aut Rikako Ishimoto verfasserin aut Toshihiro Kawaguchi verfasserin aut Kotaro Kohno verfasserin aut Chien-Hsiu Lee verfasserin aut Tohru Nagao verfasserin aut John D. Silverman verfasserin aut Yoshiki Toba verfasserin aut In The Astrophysical Journal Letters IOP Publishing, 2022 965(2024), 1, p L4 (DE-627)312189028 (DE-600)2006858-X 20418213 nnns volume:965 year:2024 number:1, p L4 https://doi.org/10.3847/2041-8213/ad35c7 kostenfrei https://doaj.org/article/213483deef95490b82e7f2c75e4f0c89 kostenfrei https://doi.org/10.3847/2041-8213/ad35c7 kostenfrei https://doaj.org/toc/2041-8205 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ 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_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2014 GBV_ILN_2088 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 965 2024 1, p L4
spelling	10.3847/2041-8213/ad35c7 doi (DE-627)DOAJ092501761 (DE-599)DOAJ213483deef95490b82e7f2c75e4f0c89 DE-627 ger DE-627 rakwb eng QB460-466 Yoshiki Matsuoka verfasserin aut Discovery of Merging Twin Quasars at z = 6.05 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We report the discovery of two quasars at a redshift of z = 6.05 in the process of merging. They were serendipitously discovered from the deep multiband imaging data collected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. The quasars, HSC J121503.42−014858.7 (C1) and HSC J121503.55−014859.3 (C2), both have luminous (<10 ^43 erg s ^−1 ) Ly α emission with a clear broad component (full width at half maximum <1000 km s ^−1 ). The rest-frame ultraviolet (UV) absolute magnitudes are M _1450 = − 23.106 ± 0.017 (C1) and −22.662 ± 0.024 (C2). Our crude estimates of the black hole masses provide $\mathrm{log}({M}_{\mathrm{BH}}/{M}_{\odot })=8.1\pm 0.3$ in both sources. The two quasars are separated by 12 kpc in projected proper distance, bridged by a structure in the rest-UV light suggesting that they are undergoing a merger. This pair is one of the most distant merging quasars reported to date, providing crucial insight into galaxy and black hole build-up in the hierarchical structure formation scenario. A companion paper will present the gas and dust properties captured by Atacama Large Millimeter/submillimeter Array observations, which provide additional evidence for and detailed measurements of the merger, and also demonstrate that the two sources are not gravitationally lensed images of a single quasar. Double quasars Quasars Reionization High-redshift galaxies Active galactic nuclei Galaxy mergers Astrophysics Takuma Izumi verfasserin aut Masafusa Onoue verfasserin aut Michael A. Strauss verfasserin aut Kazushi Iwasawa verfasserin aut Nobunari Kashikawa verfasserin aut Masayuki Akiyama verfasserin aut Kentaro Aoki verfasserin aut Junya Arita verfasserin aut Masatoshi Imanishi verfasserin aut Rikako Ishimoto verfasserin aut Toshihiro Kawaguchi verfasserin aut Kotaro Kohno verfasserin aut Chien-Hsiu Lee verfasserin aut Tohru Nagao verfasserin aut John D. Silverman verfasserin aut Yoshiki Toba verfasserin aut In The Astrophysical Journal Letters IOP Publishing, 2022 965(2024), 1, p L4 (DE-627)312189028 (DE-600)2006858-X 20418213 nnns volume:965 year:2024 number:1, p L4 https://doi.org/10.3847/2041-8213/ad35c7 kostenfrei https://doaj.org/article/213483deef95490b82e7f2c75e4f0c89 kostenfrei https://doi.org/10.3847/2041-8213/ad35c7 kostenfrei https://doaj.org/toc/2041-8205 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ 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_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2014 GBV_ILN_2088 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 965 2024 1, p L4
allfields_unstemmed	10.3847/2041-8213/ad35c7 doi (DE-627)DOAJ092501761 (DE-599)DOAJ213483deef95490b82e7f2c75e4f0c89 DE-627 ger DE-627 rakwb eng QB460-466 Yoshiki Matsuoka verfasserin aut Discovery of Merging Twin Quasars at z = 6.05 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We report the discovery of two quasars at a redshift of z = 6.05 in the process of merging. They were serendipitously discovered from the deep multiband imaging data collected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. The quasars, HSC J121503.42−014858.7 (C1) and HSC J121503.55−014859.3 (C2), both have luminous (<10 ^43 erg s ^−1 ) Ly α emission with a clear broad component (full width at half maximum <1000 km s ^−1 ). The rest-frame ultraviolet (UV) absolute magnitudes are M _1450 = − 23.106 ± 0.017 (C1) and −22.662 ± 0.024 (C2). Our crude estimates of the black hole masses provide $\mathrm{log}({M}_{\mathrm{BH}}/{M}_{\odot })=8.1\pm 0.3$ in both sources. The two quasars are separated by 12 kpc in projected proper distance, bridged by a structure in the rest-UV light suggesting that they are undergoing a merger. This pair is one of the most distant merging quasars reported to date, providing crucial insight into galaxy and black hole build-up in the hierarchical structure formation scenario. A companion paper will present the gas and dust properties captured by Atacama Large Millimeter/submillimeter Array observations, which provide additional evidence for and detailed measurements of the merger, and also demonstrate that the two sources are not gravitationally lensed images of a single quasar. Double quasars Quasars Reionization High-redshift galaxies Active galactic nuclei Galaxy mergers Astrophysics Takuma Izumi verfasserin aut Masafusa Onoue verfasserin aut Michael A. Strauss verfasserin aut Kazushi Iwasawa verfasserin aut Nobunari Kashikawa verfasserin aut Masayuki Akiyama verfasserin aut Kentaro Aoki verfasserin aut Junya Arita verfasserin aut Masatoshi Imanishi verfasserin aut Rikako Ishimoto verfasserin aut Toshihiro Kawaguchi verfasserin aut Kotaro Kohno verfasserin aut Chien-Hsiu Lee verfasserin aut Tohru Nagao verfasserin aut John D. Silverman verfasserin aut Yoshiki Toba verfasserin aut In The Astrophysical Journal Letters IOP Publishing, 2022 965(2024), 1, p L4 (DE-627)312189028 (DE-600)2006858-X 20418213 nnns volume:965 year:2024 number:1, p L4 https://doi.org/10.3847/2041-8213/ad35c7 kostenfrei https://doaj.org/article/213483deef95490b82e7f2c75e4f0c89 kostenfrei https://doi.org/10.3847/2041-8213/ad35c7 kostenfrei https://doaj.org/toc/2041-8205 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ 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_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2014 GBV_ILN_2088 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 965 2024 1, p L4
allfieldsGer	10.3847/2041-8213/ad35c7 doi (DE-627)DOAJ092501761 (DE-599)DOAJ213483deef95490b82e7f2c75e4f0c89 DE-627 ger DE-627 rakwb eng QB460-466 Yoshiki Matsuoka verfasserin aut Discovery of Merging Twin Quasars at z = 6.05 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We report the discovery of two quasars at a redshift of z = 6.05 in the process of merging. They were serendipitously discovered from the deep multiband imaging data collected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. The quasars, HSC J121503.42−014858.7 (C1) and HSC J121503.55−014859.3 (C2), both have luminous (<10 ^43 erg s ^−1 ) Ly α emission with a clear broad component (full width at half maximum <1000 km s ^−1 ). The rest-frame ultraviolet (UV) absolute magnitudes are M _1450 = − 23.106 ± 0.017 (C1) and −22.662 ± 0.024 (C2). Our crude estimates of the black hole masses provide $\mathrm{log}({M}_{\mathrm{BH}}/{M}_{\odot })=8.1\pm 0.3$ in both sources. The two quasars are separated by 12 kpc in projected proper distance, bridged by a structure in the rest-UV light suggesting that they are undergoing a merger. This pair is one of the most distant merging quasars reported to date, providing crucial insight into galaxy and black hole build-up in the hierarchical structure formation scenario. A companion paper will present the gas and dust properties captured by Atacama Large Millimeter/submillimeter Array observations, which provide additional evidence for and detailed measurements of the merger, and also demonstrate that the two sources are not gravitationally lensed images of a single quasar. Double quasars Quasars Reionization High-redshift galaxies Active galactic nuclei Galaxy mergers Astrophysics Takuma Izumi verfasserin aut Masafusa Onoue verfasserin aut Michael A. Strauss verfasserin aut Kazushi Iwasawa verfasserin aut Nobunari Kashikawa verfasserin aut Masayuki Akiyama verfasserin aut Kentaro Aoki verfasserin aut Junya Arita verfasserin aut Masatoshi Imanishi verfasserin aut Rikako Ishimoto verfasserin aut Toshihiro Kawaguchi verfasserin aut Kotaro Kohno verfasserin aut Chien-Hsiu Lee verfasserin aut Tohru Nagao verfasserin aut John D. Silverman verfasserin aut Yoshiki Toba verfasserin aut In The Astrophysical Journal Letters IOP Publishing, 2022 965(2024), 1, p L4 (DE-627)312189028 (DE-600)2006858-X 20418213 nnns volume:965 year:2024 number:1, p L4 https://doi.org/10.3847/2041-8213/ad35c7 kostenfrei https://doaj.org/article/213483deef95490b82e7f2c75e4f0c89 kostenfrei https://doi.org/10.3847/2041-8213/ad35c7 kostenfrei https://doaj.org/toc/2041-8205 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ 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_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2014 GBV_ILN_2088 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 965 2024 1, p L4
allfieldsSound	10.3847/2041-8213/ad35c7 doi (DE-627)DOAJ092501761 (DE-599)DOAJ213483deef95490b82e7f2c75e4f0c89 DE-627 ger DE-627 rakwb eng QB460-466 Yoshiki Matsuoka verfasserin aut Discovery of Merging Twin Quasars at z = 6.05 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We report the discovery of two quasars at a redshift of z = 6.05 in the process of merging. They were serendipitously discovered from the deep multiband imaging data collected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. The quasars, HSC J121503.42−014858.7 (C1) and HSC J121503.55−014859.3 (C2), both have luminous (<10 ^43 erg s ^−1 ) Ly α emission with a clear broad component (full width at half maximum <1000 km s ^−1 ). The rest-frame ultraviolet (UV) absolute magnitudes are M _1450 = − 23.106 ± 0.017 (C1) and −22.662 ± 0.024 (C2). Our crude estimates of the black hole masses provide $\mathrm{log}({M}_{\mathrm{BH}}/{M}_{\odot })=8.1\pm 0.3$ in both sources. The two quasars are separated by 12 kpc in projected proper distance, bridged by a structure in the rest-UV light suggesting that they are undergoing a merger. This pair is one of the most distant merging quasars reported to date, providing crucial insight into galaxy and black hole build-up in the hierarchical structure formation scenario. A companion paper will present the gas and dust properties captured by Atacama Large Millimeter/submillimeter Array observations, which provide additional evidence for and detailed measurements of the merger, and also demonstrate that the two sources are not gravitationally lensed images of a single quasar. Double quasars Quasars Reionization High-redshift galaxies Active galactic nuclei Galaxy mergers Astrophysics Takuma Izumi verfasserin aut Masafusa Onoue verfasserin aut Michael A. Strauss verfasserin aut Kazushi Iwasawa verfasserin aut Nobunari Kashikawa verfasserin aut Masayuki Akiyama verfasserin aut Kentaro Aoki verfasserin aut Junya Arita verfasserin aut Masatoshi Imanishi verfasserin aut Rikako Ishimoto verfasserin aut Toshihiro Kawaguchi verfasserin aut Kotaro Kohno verfasserin aut Chien-Hsiu Lee verfasserin aut Tohru Nagao verfasserin aut John D. Silverman verfasserin aut Yoshiki Toba verfasserin aut In The Astrophysical Journal Letters IOP Publishing, 2022 965(2024), 1, p L4 (DE-627)312189028 (DE-600)2006858-X 20418213 nnns volume:965 year:2024 number:1, p L4 https://doi.org/10.3847/2041-8213/ad35c7 kostenfrei https://doaj.org/article/213483deef95490b82e7f2c75e4f0c89 kostenfrei https://doi.org/10.3847/2041-8213/ad35c7 kostenfrei https://doaj.org/toc/2041-8205 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ 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_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2014 GBV_ILN_2088 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 965 2024 1, p L4
language	English
source	In The Astrophysical Journal Letters 965(2024), 1, p L4 volume:965 year:2024 number:1, p L4
sourceStr	In The Astrophysical Journal Letters 965(2024), 1, p L4 volume:965 year:2024 number:1, p L4
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Double quasars Quasars Reionization High-redshift galaxies Active galactic nuclei Galaxy mergers Astrophysics
isfreeaccess_bool	true
container_title	The Astrophysical Journal Letters
authorswithroles_txt_mv	Yoshiki Matsuoka @@aut@@ Takuma Izumi @@aut@@ Masafusa Onoue @@aut@@ Michael A. Strauss @@aut@@ Kazushi Iwasawa @@aut@@ Nobunari Kashikawa @@aut@@ Masayuki Akiyama @@aut@@ Kentaro Aoki @@aut@@ Junya Arita @@aut@@ Masatoshi Imanishi @@aut@@ Rikako Ishimoto @@aut@@ Toshihiro Kawaguchi @@aut@@ Kotaro Kohno @@aut@@ Chien-Hsiu Lee @@aut@@ Tohru Nagao @@aut@@ John D. Silverman @@aut@@ Yoshiki Toba @@aut@@
publishDateDaySort_date	2024-01-01T00:00:00Z
hierarchy_top_id	312189028
id	DOAJ092501761
language_de	englisch
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callnumber-first	Q - Science
author	Yoshiki Matsuoka
spellingShingle	Yoshiki Matsuoka misc QB460-466 misc Double quasars misc Quasars misc Reionization misc High-redshift galaxies misc Active galactic nuclei misc Galaxy mergers misc Astrophysics Discovery of Merging Twin Quasars at z = 6.05
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topic_title	QB460-466 Discovery of Merging Twin Quasars at z = 6.05 Double quasars Quasars Reionization High-redshift galaxies Active galactic nuclei Galaxy mergers
topic	misc QB460-466 misc Double quasars misc Quasars misc Reionization misc High-redshift galaxies misc Active galactic nuclei misc Galaxy mergers misc Astrophysics
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title	Discovery of Merging Twin Quasars at z = 6.05
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title_full	Discovery of Merging Twin Quasars at z = 6.05
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author_browse	Yoshiki Matsuoka Takuma Izumi Masafusa Onoue Michael A. Strauss Kazushi Iwasawa Nobunari Kashikawa Masayuki Akiyama Kentaro Aoki Junya Arita Masatoshi Imanishi Rikako Ishimoto Toshihiro Kawaguchi Kotaro Kohno Chien-Hsiu Lee Tohru Nagao John D. Silverman Yoshiki Toba
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title_sort	discovery of merging twin quasars at z = 6.05
callnumber	QB460-466
title_auth	Discovery of Merging Twin Quasars at z = 6.05
abstract	We report the discovery of two quasars at a redshift of z = 6.05 in the process of merging. They were serendipitously discovered from the deep multiband imaging data collected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. The quasars, HSC J121503.42−014858.7 (C1) and HSC J121503.55−014859.3 (C2), both have luminous (<10 ^43 erg s ^−1 ) Ly α emission with a clear broad component (full width at half maximum <1000 km s ^−1 ). The rest-frame ultraviolet (UV) absolute magnitudes are M _1450 = − 23.106 ± 0.017 (C1) and −22.662 ± 0.024 (C2). Our crude estimates of the black hole masses provide $\mathrm{log}({M}_{\mathrm{BH}}/{M}_{\odot })=8.1\pm 0.3$ in both sources. The two quasars are separated by 12 kpc in projected proper distance, bridged by a structure in the rest-UV light suggesting that they are undergoing a merger. This pair is one of the most distant merging quasars reported to date, providing crucial insight into galaxy and black hole build-up in the hierarchical structure formation scenario. A companion paper will present the gas and dust properties captured by Atacama Large Millimeter/submillimeter Array observations, which provide additional evidence for and detailed measurements of the merger, and also demonstrate that the two sources are not gravitationally lensed images of a single quasar.
abstractGer	We report the discovery of two quasars at a redshift of z = 6.05 in the process of merging. They were serendipitously discovered from the deep multiband imaging data collected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. The quasars, HSC J121503.42−014858.7 (C1) and HSC J121503.55−014859.3 (C2), both have luminous (<10 ^43 erg s ^−1 ) Ly α emission with a clear broad component (full width at half maximum <1000 km s ^−1 ). The rest-frame ultraviolet (UV) absolute magnitudes are M _1450 = − 23.106 ± 0.017 (C1) and −22.662 ± 0.024 (C2). Our crude estimates of the black hole masses provide $\mathrm{log}({M}_{\mathrm{BH}}/{M}_{\odot })=8.1\pm 0.3$ in both sources. The two quasars are separated by 12 kpc in projected proper distance, bridged by a structure in the rest-UV light suggesting that they are undergoing a merger. This pair is one of the most distant merging quasars reported to date, providing crucial insight into galaxy and black hole build-up in the hierarchical structure formation scenario. A companion paper will present the gas and dust properties captured by Atacama Large Millimeter/submillimeter Array observations, which provide additional evidence for and detailed measurements of the merger, and also demonstrate that the two sources are not gravitationally lensed images of a single quasar.
abstract_unstemmed	We report the discovery of two quasars at a redshift of z = 6.05 in the process of merging. They were serendipitously discovered from the deep multiband imaging data collected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. The quasars, HSC J121503.42−014858.7 (C1) and HSC J121503.55−014859.3 (C2), both have luminous (<10 ^43 erg s ^−1 ) Ly α emission with a clear broad component (full width at half maximum <1000 km s ^−1 ). The rest-frame ultraviolet (UV) absolute magnitudes are M _1450 = − 23.106 ± 0.017 (C1) and −22.662 ± 0.024 (C2). Our crude estimates of the black hole masses provide $\mathrm{log}({M}_{\mathrm{BH}}/{M}_{\odot })=8.1\pm 0.3$ in both sources. The two quasars are separated by 12 kpc in projected proper distance, bridged by a structure in the rest-UV light suggesting that they are undergoing a merger. This pair is one of the most distant merging quasars reported to date, providing crucial insight into galaxy and black hole build-up in the hierarchical structure formation scenario. A companion paper will present the gas and dust properties captured by Atacama Large Millimeter/submillimeter Array observations, which provide additional evidence for and detailed measurements of the merger, and also demonstrate that the two sources are not gravitationally lensed images of a single quasar.
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title_short	Discovery of Merging Twin Quasars at z = 6.05
url	https://doi.org/10.3847/2041-8213/ad35c7 https://doaj.org/article/213483deef95490b82e7f2c75e4f0c89 https://doaj.org/toc/2041-8205
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score	7.4018726

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Discovery of Merging Twin Quasars at z = 6.05

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Zugang & Verfügbarkeit

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