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Discovery of 16 New z similar to 5.5 Quasars: Filling in the Redshift Gap of Quasar Color Selection
Yang, Jinyi1,2,3; Fan, Xiaohui2,3; Wu, Xue-Bing1,2; Wang, Feige1,2,3; Bian, Fuyan4,9; Yang, Qian1,2; McGreer, Ian D.3; Yi WM(易卫敏)5,6; Jiang, Linhua2; Green, Richard3; Yue, Minghao1,3; Wang, Shu1,2; Li, Zefeng1; Ding, Jiani3; Dye, Simon7; Lawrence, Andy8; Stromlo Fellow.9
Source PublicationASTRONOMICAL JOURNAL
2017-04-01
Volume153Issue:4
DOI10.3847/1538-3881/aa6577
Contribution Rank第5完成单位
Indexed BySCI
KeywordGalaxies: Active Galaxies: High-redshift Quasars: Emission Lines Quasars: General
Abstract

We present initial results from the first systematic survey of luminous z similar to 5.5 quasars. Quasars at z similar to 5.5, the post-reionization epoch, are crucial tools to explore the evolution of intergalactic medium, quasar evolution, and the early super-massive black hole growth. However, it has been very challenging to select quasars at redshifts 5.3 <= z <= 5.7 using conventional color selections, due to their similar optical colors to late-type stars, especially M dwarfs, resulting in a glaring redshift gap in quasar redshift distributions. We develop a new selection technique for z similar to 5.5 quasars based on optical, near-IR, and mid-IR photometric data from Sloan Digital Sky Survey (SDSS), UKIRT InfraRed Deep Sky Surveys-Large Area Survey (ULAS), VISTA Hemisphere Survey (VHS), and Wide Field Infrared Survey Explorer. From our pilot observations in the SDSS-ULAS/VHS area, we have discovered 15 new quasars at 5.3. z. 5.7 and 6 new lower redshift quasars, with SDSS z band magnitude brighter than 20.5. Including other two z similar to 5.5 quasars already published in our previous work, we now construct a uniform quasar sample at 5.3 <= z <= 5.7, with 17 quasars in a similar to 4800 square degree survey area. For further application in a larger survey area, we apply our selection pipeline to do a test selection by using the new wide field J-band photometric data from a preliminary version of the UKIRT Hemisphere Survey (UHS). We successfully discover the first UHS selected z similar to 5.5 quasar.

Funding ProjectNSFC[11373008] ; NSFC[11533001] ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences[XDB09000000] ; National Key Basic Research Program of China[2014CB845700] ; Ministry of Science and Technology of China[2016YFA0400703] ; U.S. NSF[AST 11-07682] ; U.S. NSF[AST 15-15115] ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; Strategic Priority Research Program "The Emergence of Cosmological Structures"[XDB09000000] ; National Astronomical Observatories ; Special Fund for Astronomy from the Ministry of Finance in China ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Alfred P. Sloan Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science ; University of Arizona ; Brazilian Participation Group ; Brookhaven National Laboratory ; University of Cambridge ; Carnegie Mellon University ; University of Florida ; French Participation Group ; German Participation Group ; Harvard University ; Instituto de Astrofisica de Canarias ; Michigan State/Notre Dame/JINA Participation Group ; Johns Hopkins University ; Lawrence Berkeley National Laboratory ; Max Planck Institute for Astrophysics ; Max Planck Institute for Extraterrestrial Physics ; New Mexico State University ; New York University ; Ohio State University ; Pennsylvania State University ; University of Portsmouth ; Princeton University ; Spanish Participation Group ; University of Tokyo ; University of Utah ; Vanderbilt University ; University of Virginia ; University of Washington ; Yale University ; National Aeronautics and Space Administration
Funding OrganizationNSFC[11373008, 11533001] ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences[XDB09000000] ; National Key Basic Research Program of China[2014CB845700] ; Ministry of Science and Technology of China[2016YFA0400703] ; U.S. NSF[AST 11-07682, AST 15-15115] ; Chinese Academy of Sciences ; People's Government of Yunnan Province ; Strategic Priority Research Program "The Emergence of Cosmological Structures"[XDB09000000] ; National Astronomical Observatories ; Special Fund for Astronomy from the Ministry of Finance in China ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences ; Alfred P. Sloan Foundation ; National Science Foundation ; U.S. Department of Energy Office of Science ; University of Arizona ; Brazilian Participation Group ; Brookhaven National Laboratory ; University of Cambridge ; Carnegie Mellon University ; University of Florida ; French Participation Group ; German Participation Group ; Harvard University ; Instituto de Astrofisica de Canarias ; Michigan State/Notre Dame/JINA Participation Group ; Johns Hopkins University ; Lawrence Berkeley National Laboratory ; Max Planck Institute for Astrophysics ; Max Planck Institute for Extraterrestrial Physics ; New Mexico State University ; New York University ; Ohio State University ; Pennsylvania State University ; University of Portsmouth ; Princeton University ; Spanish Participation Group ; University of Tokyo ; University of Utah ; Vanderbilt University ; University of Virginia ; University of Washington ; Yale University ; National Aeronautics and Space Administration
Language英语
Subject Area天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-6256
URL查看原文
WOS IDWOS:000398263900002
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordDigital Sky Survey ; Field Spectrograph Wifes ; Infrared-survey-explorer ; Black-hole Mass ; Luminosity Function ; Data Reduction ; Survey Ukidss ; Data Release ; Spectra ; Sample
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/10013
Collection丽江天文观测站(南方基地)
中国科学院天体结构与演化重点实验室
Corresponding AuthorYang, Jinyi
Affiliation1.Department of Astronomy, School of Physics, Peking University, Beijing 100871, China
2.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, China
3.Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
4.Research School of Astronomy and Astrophysics, Australian National University, Weston Creek, ACT 2611, Australia
5.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
6.Lehigh University, 27 Memorial Drive West, Bethlehem, PA 18015, USA
7.School of Physics and Astronomy, Nottingham University, University Park, Nottingham, NG7 2RD, UK
8.Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh, EH9 3HJ, UK
9.Stromlo Fellow
Recommended Citation
GB/T 7714
Yang, Jinyi,Fan, Xiaohui,Wu, Xue-Bing,et al. Discovery of 16 New z similar to 5.5 Quasars: Filling in the Redshift Gap of Quasar Color Selection[J]. ASTRONOMICAL JOURNAL,2017,153(4).
APA Yang, Jinyi.,Fan, Xiaohui.,Wu, Xue-Bing.,Wang, Feige.,Bian, Fuyan.,...&Stromlo Fellow..(2017).Discovery of 16 New z similar to 5.5 Quasars: Filling in the Redshift Gap of Quasar Color Selection.ASTRONOMICAL JOURNAL,153(4).
MLA Yang, Jinyi,et al."Discovery of 16 New z similar to 5.5 Quasars: Filling in the Redshift Gap of Quasar Color Selection".ASTRONOMICAL JOURNAL 153.4(2017).
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