An ultraluminous quasar with a twelve-billion-solar-mass black hole at redshift 6.30

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	An ultraluminous quasar with a twelve-billion-solar-mass black hole at redshift 6.30
	Wu, XB 1,2; Wang, FG 1,2; Fan, XH 2,3; Yi WM(易卫敏)4,5,6 ; Zuo, WW 7; Bian, FY 8; Jiang, LH 2; McGreer, ID 3; Wang, R 2; Yang, JY1,2
刊名	NATURE
	2015-02-26
卷号	518 期号:7540 页码:512-515
ISSN号	0028-0836
通讯作者	Wu, XB (reprint author), Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China.
产权排序	第四完成单位
英文摘要	So far, roughly 40 quasars with redshifts greater than z = 6 have been discovered(1-8). Each quasar contains a black hole with a mass of about one billion solar masses (10(9) M-circle dot)(2,6,7,9-13). The existence of such black holes when the Universe was less than one billion years old presents substantial challenges to theories of the formation and growth of black holes and the coevolution of black holes and galaxies(14). Here we report the discovery of an ultraluminous quasar, SDSS J010013.02+280225.8, at redshift z = 6.30. It has an optical and near-infrared luminosity a few times greater than those of previously known z > 6 quasars. On the basis of the deep absorption trough(15) on the blue side of the Lyman-alpha emission line in the spectrum, we estimate the proper size of the ionized proximity zone associated with the quasar to be about 26 million light years, larger than found with other z > 6.1 quasars with lower luminosities(16). We estimate (on the basis of a near-infrared spectrum) that the black hole has a mass of similar to 1.2 x 10(10) M-circle dot, which is consistent with the 1.3 x 10(10) M-circle dot derived by assuming an Eddington-limited accretion rate.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	DIGITAL SKY SURVEY ; SIMILAR-TO 6 ; Z-SIMILAR-TO-6 QUASARS ; LUMINOSITY FUNCTION ; SDSS QUASARS ; DATA RELEASE ; MASSES ; EVOLUTION ; DISCOVERY ; EMISSION
收录类别	SCI ; EI
原文出处	http://www.nature.com/nature/journal/v518/n7540/full/nature14241.html
语种	英语
WOS记录号	WOS:000350097300041
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5472]
专题	云南天文台_丽江天文观测站（南方基地）云南天文台_中国科学院天体结构与演化重点实验室
作者单位	1.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, Tucson, Arizona 85721-0065, USA 4.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China 5.University of Chinese Academy of Sciences, Beijing 100049, China 6.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China 7.Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China 8.Mount Stromlo Observatory, Research School of Astronomy and Astrophysics, Australian National University, Weston Creek, Australian Capital Territory 2611, Australia 9.Large Binocular Telescope Observatory, University of Arizona, Tucson, Arizona 85721, USA 10.Las Campanas Observatory, Carnegie Institution of Washington, Colina el Pino, Casilla 601, La Serena, Chile
推荐引用方式 GB/T 7714	Wu, XB,Wang, FG,Fan, XH,et al. An ultraluminous quasar with a twelve-billion-solar-mass black hole at redshift 6.30[J]. NATURE,2015,518(7540):512-515.
APA	Wu, XB.,Wang, FG.,Fan, XH.,Yi WM.,Zuo, WW.,...&Beletsky, Y.(2015).An ultraluminous quasar with a twelve-billion-solar-mass black hole at redshift 6.30.NATURE,518(7540),512-515.
MLA	Wu, XB,et al."An ultraluminous quasar with a twelve-billion-solar-mass black hole at redshift 6.30".NATURE 518.7540(2015):512-515.