Pōniuā‘ena: A Luminous z = 7.5 Quasar Hosting a 1.5 Billion Solar Mass Black Hole

@article{Yang2020PniuenaAL,
  title={Pōniuā‘ena: A Luminous z = 7.5 Quasar Hosting a 1.5 Billion Solar Mass Black Hole},
  author={Jinyi Yang and Feige Wang and Xiaohui Fan and Joseph F. Hennawi and Frederick B. Davies and Minghao Yue and Eduardo Ba{\~n}ados and Xue-Bing Wu and Bram P. Venemans and Aaron J. Barth and Fuyan Bian and Konstantina Boutsia and Roberto Decarli and Emanuele Paolo Farina and Richard Green and Linhua Jiang and Jiang-Tao Li and Chiara Mazzucchelli and Fabian Walter},
  journal={arXiv: Astrophysics of Galaxies},
  year={2020}
}
We report the discovery of a luminous quasar, J1007+2115 at $z=7.515$ ("Pōniuā'ena"), from our wide-field reionization-era quasar survey. J1007+2115 is the second quasar now known at $z>7.5$, deep into the reionization epoch. The quasar is powered by a $(1.5\pm0.2)\times10^9$ $M_{\odot}$ supermassive black hole (SMBH), based on its broad MgII emission-line profile from Gemini and Keck near-IR spectroscopy. The SMBH in J1007+2115 is twice as massive as that in quasar J1342+0928 at $z=7.54$, the… Expand

Figures and Tables from this paper

A Luminous Quasar at Redshift 7.642
Distant quasars are unique tracers to study the formation of the earliest supermassive black holes (SMBHs) and the history of cosmic reionization. Despite extensive efforts, only two quasars haveExpand
ALMA Observations of the Sub-kpc Structure of the Host Galaxy of a z = 6.5 Lensed Quasar: A Rotationally Supported Hyper-Starburst System at the Epoch of Reionization
We report Atacama Large Millimeter/Submillimeter Array (ALMA) observations of the dust continuum and [C ii] emission of the host galaxy of J0439+1634, a gravitationally lensed quasar at z = 6.5.Expand
The Discovery of a Highly Accreting, Radio-loud Quasar at z = 6.82
Radio sources at the highest redshifts can provide unique information on the first massive galaxies and black holes, the densest primordial environments, and the epoch of reionization. The number ofExpand
Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). XIV. A Candidate Type II Quasar at z = 6.1292
We present deep Keck/MOSFIRE near-infrared spectroscopy of a strong Lyα emitting source at z = 6.1292, HSC J142331.71−001809.1, which was discovered by the SHELLQS program from imaging data of theExpand
The first measurement of the quasar lifetime distribution
Understanding the growth of the supermassive black holes (SMBH) powering luminous quasars, their co-evolution with host galaxies, and impact on the surrounding intergalactic medium (IGM) dependsExpand
Chandra and Magellan/FIRE follow-up observations of PSO167–13: An X-ray weak QSO at z = 6.515
The discovery of hundreds of QSOs in the first Gyr of the Universe powered by already grown SMBHs challenges our knowledge of SMBH formation. In particular, investigations of $z>6$ QSOs presentingExpand
A Chandra survey of z ≥ 4.5 quasars
X-ray observations provide a unique probe of the accretion disc corona of supermassive black holes (SMBHs). In this paper, we present a uniform Chandra X-ray data analysis of a sample of 152 z ≥Expand
A massive blow for ΛCDM – the high redshift, mass, and collision velocity of the interacting galaxy cluster El Gordo contradicts concordance cosmology
El Gordo (ACT-CL J0102-4915) is an extremely massive galaxy cluster ($M_{200} \approx 3 \times 10^{15}$ $M_{\odot}$) at redshift $z = 0.87 $ composed of two subclusters with mass ratio 3.6 merging atExpand
Detecting and Characterizing Young Quasars. II. Four Quasars at z ∼ 6 with Lifetimes < 104 Yr
The extents of proximity zones of high-redshift quasars enable constraints on the timescales of quasar activity, which are fundamental for understanding the growth of the supermassive black holesExpand
The Luminosity Function of Bright QSOs at z ∼ 4 and Implications for the Cosmic Ionizing Background
Based on results by recent surveys, the number of bright quasars at redshifts z > 3 is being constantly revised upward. The current consensus is that at bright magnitudes (M 1450 ≤ −27) the numberExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 56 REFERENCES
The Discovery of a Luminous Broad Absorption Line Quasar at a Redshift of 7.02
Despite extensive efforts, only two quasars have been found at $z>7$ to date due to a combination of low spatial density and high contamination from more ubiquitous Galactic cool dwarfs in quasarExpand
An 800-million-solar-mass black hole in a significantly neutral Universe at a redshift of 7.5
TLDR
Strong evidence of absorption of the spectrum of the quasar redwards of the Lyman α emission line (the Gunn–Peterson damping wing), as would be expected if a significant amount of the hydrogen in the intergalactic medium surrounding J1342 + 0928 is neutral, and a significant fraction of neutral hydrogen is derived, although the exact fraction depends on the modelling. Expand
Evidence for Low Radiative Efficiency or Highly Obscured Growth of z > 7 Quasars
The supermassive black holes (SMBHs) observed at the centers of all massive galaxies are believed to have grown via luminous accretion during quasar phases in the distant past. The fraction ofExpand
A luminous quasar at a redshift of z = 7.085
TLDR
Observations of a quasar at a redshift of 7.3 are reported, suggesting that the neutral fraction of the intergalactic medium in front of ULAS J1120+0641 exceeded 0.1. Expand
An ultraluminous quasar with a twelve-billion-solar-mass black hole at redshift 6.30
TLDR
The discovery of an ultraluminous quasar, SDSS J010013.02+280225.8, at redshift z = 6.30, which has an optical and near-infrared luminosity a few times greater than those of previously known z > 6 quasars. Expand
The identification of z-dropouts in Pan-STARRS1: three quasars at 6.5
Luminous distant quasars are unique probes of the high redshift intergalactic medium (IGM) and of the growth of massive galaxies and black holes in the early universe. Absorption due to neutralExpand
Discovery of Three z > 6.5 Quasars in the VISTA Kilo-Degree Infrared Galaxy (VIKING) Survey
Studying quasars at the highest redshifts can constrain models of galaxy and black hole formation, and it also probes the intergalactic medium in the early universe. Optical surveys have to dateExpand
Discovery of the First Low-luminosity Quasar at z > 7
We report the discovery of a quasar at z = 7.07, which was selected from the deep multi-band imaging data collected by the Hyper Suprime-Cam (HSC) Subaru Strategic Program survey. This quasar, HSCExpand
Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). X. Discovery of 35 Quasars and Luminous Galaxies at 5.7 ≤ z ≤ 7.0
We report the discovery of 28 quasars and 7 luminous galaxies at 5.7 ≤ z ≤ 7.0. This is the tenth in a series of papers from the Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) project,Expand
Gemini GNIRS Near-infrared Spectroscopy of 50 Quasars at z ≳ 5.7
We report initial results from a large Gemini program to observe z>~5.7 quasars with GNIRS near-IR spectroscopy. Our sample includes 50 quasars with simultaneous ~0.85-2.5 micron spectra covering theExpand
...
1
2
3
4
5
...