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      Black holes on FIRE: stellar feedback limits early feeding of galactic nuclei

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          Most cited references 39

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          On the Maximum Luminosity of Galaxies and Their Central Black Holes: Feedback from Momentum‐driven Winds

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            A luminous quasar at a redshift of z = 7.085.

            The intergalactic medium was not completely reionized until approximately a billion years after the Big Bang, as revealed by observations of quasars with redshifts of less than 6.5. It has been difficult to probe to higher redshifts, however, because quasars have historically been identified in optical surveys, which are insensitive to sources at redshifts exceeding 6.5. Here we report observations of a quasar (ULAS J112001.48+064124.3) at a redshift of 7.085, which is 0.77 billion years after the Big Bang. ULAS J1120+0641 has a luminosity of 6.3 × 10(13)L(⊙) and hosts a black hole with a mass of 2 × 10(9)M(⊙) (where L(⊙) and M(⊙) are the luminosity and mass of the Sun). The measured radius of the ionized near zone around ULAS J1120+0641 is 1.9 megaparsecs, a factor of three smaller than is typical for quasars at redshifts between 6.0 and 6.4. The near-zone transmission profile is consistent with a Lyα damping wing, suggesting that the neutral fraction of the intergalactic medium in front of ULAS J1120+0641 exceeded 0.1.
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              AHF: AMIGA'S HALO FINDER

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                Author and article information

                Journal
                Monthly Notices of the Royal Astronomical Society: Letters
                Oxford University Press (OUP)
                1745-3925
                1745-3933
                November 2017
                November 21 2017
                October 05 2017
                November 2017
                November 21 2017
                October 05 2017
                : 472
                : 1
                : L109-L114
                Affiliations
                [1 ] CIERA and Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
                [2 ] Department of Astronomy and Theoretical Astrophysics Center, University of California Berkeley, Berkeley, CA 94720, USA
                [3 ] TAPIR, Mailcode 350-17, California Institute of Technology, Pasadena, CA 91125, USA
                [4 ] Institute for Computational Science, University of Zurich, Zurich, CH-8057, Switzerland
                [5 ] Department of Physics, MIT, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
                [6 ] The Observatories of the Carnegie Institution for Science, Pasadena, CA 91101, USA
                [7 ] Department of Physics, University of California, Davis, CA 95616, USA
                [8 ] Department of Physics, CASS, University of California at San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
                Article
                10.1093/mnrasl/slx161
                © 2017

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