Subaru High- z Exploration of Low-luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0

Matsuoka, Yoshiki; Iwasawa, Kazushi; Onoue, Masafusa; Izumi, Takuma; Kashikawa, Nobunari; Strauss, Michael A.; Imanishi, Masatoshi; Nagao, Tohru; Akiyama, Masayuki; Silverman, John D.; Asami, Naoko; Bosch, Jaime; Furusawa, Hisanori; Goto, Tomotsugu; Gunn, James E.; Harikane, Yuichi; Ikeda, Hiroyuki; Ishimoto, Rikako; Kawaguchi, Toshihiro; Kato, Nanako; Kikuta, Satoshi; Kohno, Kotaro; Komiyama, Yutaka; Lee, Chien-Hsiu; Lupton, Robert H.; Minezaki, Takeo; Miyazaki, Satoshi; Murayama, Hitoshi; Nishizawa, Atsushi J.; Oguri, Masamune; Ono, Yoshiaki; Ouchi, Masami; Price, Paul A.; Sameshima, Hiroaki; Sugiyama, N.; Tait, Philip J.; Takada, Masahiro; Takahashi, Ayumi; Tanaka, Masayuki; Toba, Yoshiki; Utsumi, Yousuke; Wang, Shiang-Yu; Yamashita, Takuji

Subaru High- z Exploration of Low-luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0

We present the spectroscopic discovery of 69 quasars at 5.8 < z < 7.0, drawn from the Hyper Suprime-Cam (HSC) Subaru Strategic Program (SSP) imaging survey data. This is the 16th publication from the Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) project, and it completes identi...

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Detalles Bibliográficos
Autores:	Matsuoka, Yoshiki, Iwasawa, Kazushi, Onoue, Masafusa, Izumi, Takuma, Kashikawa, Nobunari, Strauss, Michael A., Imanishi, Masatoshi, Nagao, Tohru, Akiyama, Masayuki, Silverman, John D., Asami, Naoko, Bosch, Jaime, Furusawa, Hisanori, Goto, Tomotsugu, Gunn, James E., Harikane, Yuichi, Ikeda, Hiroyuki, Ishimoto, Rikako, Kawaguchi, Toshihiro, Kato, Nanako, Kikuta, Satoshi, Kohno, Kotaro, Komiyama, Yutaka, Lee, Chien-Hsiu, Lupton, Robert H., Minezaki, Takeo, Miyazaki, Satoshi, Murayama, Hitoshi, Nishizawa, Atsushi J., Oguri, Masamune, Ono, Yoshiaki, Ouchi, Masami, Price, Paul A., Sameshima, Hiroaki, Sugiyama, N., Tait, Philip J., Takada, Masahiro, Takahashi, Ayumi, Tanaka, Masayuki, Toba, Yoshiki, Utsumi, Yousuke, Wang, Shiang-Yu, Yamashita, Takuji
Tipo de recurso:	artículo
Estado:	Versión publicada
Fecha de publicación:	2022
País:	España
Institución:	Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:	DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:	oai:dnet:digitalcsic_::6886be027343c1f260bd10fc196870a3
Acceso en línea:	http://hdl.handle.net/10261/277875
Access Level:	acceso abierto
Palabra clave:	Reionization Quasars Supermassive black holes High-redshift galaxies

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spelling	Subaru High- z Exploration of Low-luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0Matsuoka, YoshikiIwasawa, KazushiOnoue, MasafusaIzumi, TakumaKashikawa, NobunariStrauss, Michael A.Imanishi, MasatoshiNagao, TohruAkiyama, MasayukiSilverman, John D.Asami, NaokoBosch, JaimeFurusawa, HisanoriGoto, TomotsuguGunn, James E.Harikane, YuichiIkeda, HiroyukiIshimoto, RikakoKawaguchi, ToshihiroKato, NanakoKikuta, SatoshiKohno, KotaroKomiyama, YutakaLee, Chien-HsiuLupton, Robert H.Minezaki, TakeoMiyazaki, SatoshiMurayama, HitoshiNishizawa, Atsushi J.Oguri, MasamuneOno, YoshiakiOuchi, MasamiPrice, Paul A.Sameshima, HiroakiSugiyama, N.Tait, Philip J.Takada, MasahiroTakahashi, AyumiTanaka, MasayukiToba, YoshikiUtsumi, YousukeWang, Shiang-YuYamashita, TakujiReionizationQuasarsSupermassive black holesHigh-redshift galaxiesWe present the spectroscopic discovery of 69 quasars at 5.8 < z < 7.0, drawn from the Hyper Suprime-Cam (HSC) Subaru Strategic Program (SSP) imaging survey data. This is the 16th publication from the Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) project, and it completes identification of all but the faintest candidates (i.e., i-band dropouts with z AB < 24 and y-band detections, and z-band dropouts with y AB < 24) with Bayesian quasar probability PQB>0.1 in the HSC-SSP third public data release (PDR3). The sample reported here also includes three quasars with PQB<0.1 at z ∼6.6, which we selected in an effort to completely cover the reddest point sources with simple color cuts. The number of high-z quasars discovered in SHELLQs has now grown to 162, including 23 type II quasar candidates. This paper also presents identification of seven galaxies at 5.6 < z < 6.7, an [O iii] emitter at z = 0.954, and 31 Galactic cool stars and brown dwarfs. High-z quasars and galaxies compose 75% and 16%, respectively, of all the spectroscopic SHELLQs objects that pass our latest selection algorithm with the PDR3 photometry. That is, a total of 91% of the objects lie at z > 5.6. This demonstrates that the algorithm has very high efficiency, even though we are probing an unprecedentedly low luminosity population down to M 1450 ∼-21 mag.Y.M. was supported by the Japan Society for the Promotion of Science (JSPS) KAKENHI grant No. JP17H04830, No. 21H04494, and the Mitsubishi Foundation grant No. 30140. K.I. acknowledges support by the Spanish MCIN under grant PID2019-105510GB-C33/AEI/10.13039/501100011033 and "Unit of excellence María de Maeztu 2020-2023" awarded to ICCUB (CEX2019-000918-M).IOP PublishingJapan Society for the Promotion of ScienceMitsubishi International CorporationMinisterio de Ciencia e Innovación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2022202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/277875reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-105510GB-C33http://doi.org/10.3847/1538-4365/ac3d31Síinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::6886be027343c1f260bd10fc196870a32026-05-22T06:33:51Z
dc.title.none.fl_str_mv	Subaru High- z Exploration of Low-luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0
title	Subaru High- z Exploration of Low-luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0
spellingShingle	Subaru High- z Exploration of Low-luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0 Matsuoka, Yoshiki Reionization Quasars Supermassive black holes High-redshift galaxies
title_short	Subaru High- z Exploration of Low-luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0
title_full	Subaru High- z Exploration of Low-luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0
title_fullStr	Subaru High- z Exploration of Low-luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0
title_full_unstemmed	Subaru High- z Exploration of Low-luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0
title_sort	Subaru High- z Exploration of Low-luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0
dc.creator.none.fl_str_mv	Matsuoka, Yoshiki Iwasawa, Kazushi Onoue, Masafusa Izumi, Takuma Kashikawa, Nobunari Strauss, Michael A. Imanishi, Masatoshi Nagao, Tohru Akiyama, Masayuki Silverman, John D. Asami, Naoko Bosch, Jaime Furusawa, Hisanori Goto, Tomotsugu Gunn, James E. Harikane, Yuichi Ikeda, Hiroyuki Ishimoto, Rikako Kawaguchi, Toshihiro Kato, Nanako Kikuta, Satoshi Kohno, Kotaro Komiyama, Yutaka Lee, Chien-Hsiu Lupton, Robert H. Minezaki, Takeo Miyazaki, Satoshi Murayama, Hitoshi Nishizawa, Atsushi J. Oguri, Masamune Ono, Yoshiaki Ouchi, Masami Price, Paul A. Sameshima, Hiroaki Sugiyama, N. Tait, Philip J. Takada, Masahiro Takahashi, Ayumi Tanaka, Masayuki Toba, Yoshiki Utsumi, Yousuke Wang, Shiang-Yu Yamashita, Takuji
author	Matsuoka, Yoshiki
author_facet	Matsuoka, Yoshiki Iwasawa, Kazushi Onoue, Masafusa Izumi, Takuma Kashikawa, Nobunari Strauss, Michael A. Imanishi, Masatoshi Nagao, Tohru Akiyama, Masayuki Silverman, John D. Asami, Naoko Bosch, Jaime Furusawa, Hisanori Goto, Tomotsugu Gunn, James E. Harikane, Yuichi Ikeda, Hiroyuki Ishimoto, Rikako Kawaguchi, Toshihiro Kato, Nanako Kikuta, Satoshi Kohno, Kotaro Komiyama, Yutaka Lee, Chien-Hsiu Lupton, Robert H. Minezaki, Takeo Miyazaki, Satoshi Murayama, Hitoshi Nishizawa, Atsushi J. Oguri, Masamune Ono, Yoshiaki Ouchi, Masami Price, Paul A. Sameshima, Hiroaki Sugiyama, N. Tait, Philip J. Takada, Masahiro Takahashi, Ayumi Tanaka, Masayuki Toba, Yoshiki Utsumi, Yousuke Wang, Shiang-Yu Yamashita, Takuji
author_role	author
author2	Iwasawa, Kazushi Onoue, Masafusa Izumi, Takuma Kashikawa, Nobunari Strauss, Michael A. Imanishi, Masatoshi Nagao, Tohru Akiyama, Masayuki Silverman, John D. Asami, Naoko Bosch, Jaime Furusawa, Hisanori Goto, Tomotsugu Gunn, James E. Harikane, Yuichi Ikeda, Hiroyuki Ishimoto, Rikako Kawaguchi, Toshihiro Kato, Nanako Kikuta, Satoshi Kohno, Kotaro Komiyama, Yutaka Lee, Chien-Hsiu Lupton, Robert H. Minezaki, Takeo Miyazaki, Satoshi Murayama, Hitoshi Nishizawa, Atsushi J. Oguri, Masamune Ono, Yoshiaki Ouchi, Masami Price, Paul A. Sameshima, Hiroaki Sugiyama, N. Tait, Philip J. Takada, Masahiro Takahashi, Ayumi Tanaka, Masayuki Toba, Yoshiki Utsumi, Yousuke Wang, Shiang-Yu Yamashita, Takuji
author2_role	author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author
dc.contributor.none.fl_str_mv	Japan Society for the Promotion of Science Mitsubishi International Corporation Ministerio de Ciencia e Innovación (España) Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv	Reionization Quasars Supermassive black holes High-redshift galaxies
topic	Reionization Quasars Supermassive black holes High-redshift galaxies
description	We present the spectroscopic discovery of 69 quasars at 5.8 < z < 7.0, drawn from the Hyper Suprime-Cam (HSC) Subaru Strategic Program (SSP) imaging survey data. This is the 16th publication from the Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) project, and it completes identification of all but the faintest candidates (i.e., i-band dropouts with z AB < 24 and y-band detections, and z-band dropouts with y AB < 24) with Bayesian quasar probability PQB>0.1 in the HSC-SSP third public data release (PDR3). The sample reported here also includes three quasars with PQB<0.1 at z ∼6.6, which we selected in an effort to completely cover the reddest point sources with simple color cuts. The number of high-z quasars discovered in SHELLQs has now grown to 162, including 23 type II quasar candidates. This paper also presents identification of seven galaxies at 5.6 < z < 6.7, an [O iii] emitter at z = 0.954, and 31 Galactic cool stars and brown dwarfs. High-z quasars and galaxies compose 75% and 16%, respectively, of all the spectroscopic SHELLQs objects that pass our latest selection algorithm with the PDR3 photometry. That is, a total of 91% of the objects lie at z > 5.6. This demonstrates that the algorithm has very high efficiency, even though we are probing an unprecedentedly low luminosity population down to M 1450 ∼-21 mag.
publishDate	2022
dc.date.none.fl_str_mv	2022 2022 2022 2022
dc.type.none.fl_str_mv	info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Publisher's version info:eu-repo/semantics/publishedVersion
format	article
status_str	publishedVersion
dc.identifier.none.fl_str_mv	http://hdl.handle.net/10261/277875
url	http://hdl.handle.net/10261/277875
dc.language.none.fl_str_mv	Inglés
language_invalid_str_mv	Inglés
dc.relation.none.fl_str_mv	#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-105510GB-C33 http://doi.org/10.3847/1538-4365/ac3d31 Sí
dc.rights.none.fl_str_mv	info:eu-repo/semantics/openAccess
eu_rights_str_mv	openAccess
dc.publisher.none.fl_str_mv	IOP Publishing
publisher.none.fl_str_mv	IOP Publishing
dc.source.none.fl_str_mv	reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str	Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str	DIGITAL.CSIC. Repositorio Institucional del CSIC
collection	DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score	15.81155

Subaru High- z Exploration of Low-luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0

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