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Discovery of a 12 billion solar mass black hole at redshift 6.3 and its challenge to the black hole/galaxy coevolution at cosmic dawn

Published online by Cambridge University Press:  17 August 2016

Xue-Bing Wu ,
Feige Wang ,
Xiaohui Fan ,
Weimin Yi ,
Wenwen Zuo ,
Fuyan Bian ,
Linhua Jiang ,
Ian D. McGreer ,
Ran Wang  and
Jinyi Yang
...Show all authors
Xue-Bing Wu
Affiliation:
Department of Astronomy, School of Physics, Peking University, Beijing 100871, China email: wuxb@pku.edu.cn Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, China
Feige Wang
Affiliation:
Department of Astronomy, School of Physics, Peking University, Beijing 100871, China email: wuxb@pku.edu.cn
Xiaohui Fan
Affiliation:
Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, China Steward Observatory, University of Arizona, Tucson, AZ, United States
Weimin Yi
Affiliation:
Yunnan Astronomical Observatories, Chinese Academy of Sciences, Kunming, China
Wenwen Zuo
Affiliation:
Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, China
Fuyan Bian
Affiliation:
Mount Stromlo Observatory, Australia National University, Weston Creek, ACT, Australia
Linhua Jiang
Affiliation:
Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, China
Ian D. McGreer
Affiliation:
Steward Observatory, University of Arizona, Tucson, AZ, United States
Ran Wang
Affiliation:
Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, China
Jinyi Yang
Affiliation:
Department of Astronomy, School of Physics, Peking University, Beijing 100871, China email: wuxb@pku.edu.cn
Qian Yang
Affiliation:
Department of Astronomy, School of Physics, Peking University, Beijing 100871, China email: wuxb@pku.edu.cn
David Thompson
Affiliation:
Steward Observatory, University of Arizona, Tucson, AZ, United States
Yuri Beletsky
Affiliation:
Las Campanas Observatory, Carnegie Institution of Washington, La Serena, Chile
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Abstract

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The existence of black holes with masses of about one billion solar masses in quasars at redshifts z > 6 presents significant challenges to theories of the formation and growth of black holes and the black hole/galaxy co-evolution in the early Universe. Here we report a recent discovery of an ultra-luminous quasar at redshift z = 6.30, which has an observed optical and near-infrared luminosity a few times greater than those of previously known z > 6 quasars. With near-infrared spectroscopy, we obtain a black hole mass of about 12 billion solar masses, which is well consistent with the mass derived by assuming an Eddington-limited accretion. This ultra-luminous quasar with at z > 6 provides a unique laboratory to the study of the mass assembly and galaxy formation around the most massive black holes at cosmic dawn. It raises further challenges to the black hole/galaxy co-evolution in the epoch of cosmic reionization because the black hole needs to grow much faster than the host galaxy.

Keywords

black hole physicsgalaxies: activegalaxies: nucleigalaxies: evolutionquasars: generalquasars: emission linesearly universe
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S319: Galaxies at High Redshift and Their Evolution Over Cosmic Time , August 2015 , pp. 80 - 83
Copyright
Copyright © International Astronomical Union 2016 

References

Banados, E. et al. 2014, AJ, 148, 14 Google Scholar
Carilli, C. L. et al. 2010, ApJ, 714, 834 Google Scholar
De Rosa, G. et al. 2011, ApJ, 739, 56 Google Scholar
De Rosa, G., et al. 2014, ApJ, 790, 145 Google Scholar
Fan, X., et al. 1999, ApJ (Letters), 526, L57 Google Scholar
Fan, X. et al. 2003, AJ, 125, 1649 Google Scholar
Fan, X., Carilli, C. L., & Keating, B. 2006, ARAA, 44, 415 Google Scholar
Gunn, J. E. & Peterson, B. A. 1965, ApJ, 142, 1633 Google Scholar
Haiman, Z. et al. 2005, AJ, 623, 627 Google Scholar
Jiang, L. et al. 2007, AJ, 134, 1150 Google Scholar
Jiang, L., et al. 2008, AJ, 135, 1057 Google Scholar
Kurk, J. D. et al. 2007, ApJ, 669, 32 Google Scholar
McLure, R. J. & Dunlop, J. S. 2004, MNRAS, 352, 1390 Google Scholar
Mortlock, D. J. et al. 2011, Nature, 474, 616 Google Scholar
Shen, Y. et al. 2011, ApJS, 194, 45 Google Scholar
Skrutskie, M. F. et al. 2006, AJ, 131, 1163 Google Scholar
Venemans, E. P. et al. 2013, ApJ, 779, 24 CrossRefGoogle Scholar
Volonteri, M. 2012, Science, 337, 544 Google Scholar
Wang, F., et al. 2015, ApJ (Letters), 807, L9 Google Scholar
Wang, R., et al. 2010, ApJ, 714, 699 Google Scholar
Willott, C. J., et al. 2007, AJ, 134, 2435 CrossRefGoogle Scholar
Willott, C. J. et al. 2010, AJ, 139, 906 Google Scholar
Willott, C. J. et al. 2010a, AJ, 140, 546 Google Scholar
Willott, C. J., McLure, R. J., & Jarvis, M. J. 2003, ApJ (Letters), 587, L15 Google Scholar
Wright, E. L. et al. 2010, AJ, 140, 1868 Google Scholar
Wu, X.-B. et al. 2012, AJ, 144, 49 Google Scholar
Wu, X.-B., et al. 2015, Nature, 518, 512 Google Scholar
Yi, W., et al. 2014, ApJ (Letters), 795, L29 Google Scholar
York, D. G. et al. 2000, AJ, 120, 1579 CrossRefGoogle Scholar