%0 Generic %1 wu2015ultraluminous %A Wu, Xue-Bing %A Wang, Feige %A Fan, Xiaohui %A Yi, Weimin %A Zuo, Wenwen %A Bian, Fuyan %A Jiang, Linhua %A McGreer, Ian D. %A Wang, Ran %A Yang, Jinyi %A Yang, Qian %A Thompson, David %A Beletsky, Yuri %D 2015 %K highz luminous quasar %R 10.1038/nature14241 %T An ultra-luminous quasar with a twelve-billion-solar-mass black hole at redshift 6.30 %U http://arxiv.org/abs/1502.07418 %X So far, roughly 40 quasars with redshifts greater than z=6 have been discovered. Each quasar contains a black hole with a mass of one billion solar masses ( $10^9 M_ødot$). The existence of such black holes when the Universe was less than 1 billion years old presents substantial challenges to theories of the formation and growth of black holes and the coevolution of black holes and galaxies. Here we report the discovery of an ultra-luminous 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 on the blue side of the Ly $\alpha$ emission line in the spectrum, we estimate the proper size of the ionized proximity zone associated with the quasar to be 26 million light years, larger than found with other z>6.1 quasars with lower luminosities. We estimate (on the basis of a near-infrared spectrum) that the black hole has a mass of $\sim 1.2 10^10 M_ødot$, which is consistent with the $1.3 10^10 M_ødot$ derived by assuming an Eddington-limited accretion rate.

@misc{wu2015ultraluminous, abstract = {So far, roughly 40 quasars with redshifts greater than z=6 have been discovered. Each quasar contains a black hole with a mass of one billion solar masses ( $10^9 M_\odot$). The existence of such black holes when the Universe was less than 1 billion years old presents substantial challenges to theories of the formation and growth of black holes and the coevolution of black holes and galaxies. Here we report the discovery of an ultra-luminous 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 on the blue side of the Ly $\alpha$ emission line in the spectrum, we estimate the proper size of the ionized proximity zone associated with the quasar to be 26 million light years, larger than found with other z>6.1 quasars with lower luminosities. We estimate (on the basis of a near-infrared spectrum) that the black hole has a mass of $\sim 1.2 \times 10^{10} M_\odot$, which is consistent with the $1.3 \times 10^{10} M_\odot$ derived by assuming an Eddington-limited accretion rate.}, added-at = {2015-02-27T12:09:03.000+0100}, author = {Wu, Xue-Bing and Wang, Feige and Fan, Xiaohui and Yi, Weimin and Zuo, Wenwen and Bian, Fuyan and Jiang, Linhua and McGreer, Ian D. and Wang, Ran and Yang, Jinyi and Yang, Qian and Thompson, David and Beletsky, Yuri}, biburl = {https://www.bibsonomy.org/bibtex/211a03dbf5813ccdb659053939ac6aec8/miki}, description = {[1502.07418] An ultra-luminous quasar with a twelve-billion-solar-mass black hole at redshift 6.30}, doi = {10.1038/nature14241}, interhash = {21e78e8b84ab2ec8d8125e68945ab0e4}, intrahash = {11a03dbf5813ccdb659053939ac6aec8}, keywords = {highz luminous quasar}, note = {cite arxiv:1502.07418Comment: 24 pages, 4 figures plus 4 extended data figures, published in Nature on 26 February 2015}, timestamp = {2015-02-27T12:09:03.000+0100}, title = {An ultra-luminous quasar with a twelve-billion-solar-mass black hole at redshift 6.30}, url = {http://arxiv.org/abs/1502.07418}, year = 2015 }