Formation of supermassive black hole seeds

MA Latif, A Ferrara - Publications of the Astronomical Society of …, 2016 - cambridge.org
The detection of quasars at z> 6 unveils the presence of supermassive black holes of a few
billion solar masses. The rapid formation process of these extreme objects remains a …

Hydrogen reionization ends by z = 5.3: Lyman-α optical depth measured by the XQR-30 sample

SEI Bosman, FB Davies, GD Becker… - Monthly Notices of …, 2022 - academic.oup.com
The presence of excess scatter in the Ly-α forest at z∼ 5.5, together with the existence of
sporadic extended opaque Gunn-Peterson troughs, has started to provide robust evidence …

EIGER. I. A Large Sample of [O iii]-emitting Galaxies at 5.3< z< 6.9 and Direct Evidence for Local Reionization by Galaxies

D Kashino, SJ Lilly, J Matthee, AC Eilers… - The Astrophysical …, 2023 - iopscience.iop.org
EIGER. I. A Large Sample of [O iii]-emitting Galaxies at 5.3 < z < 6.9 and Direct Evidence for
Local Reionization by Galaxies - IOPscience Skip to content IOP Science home Accessibility …

XQR-30: The ultimate XSHOOTER quasar sample at the reionization epoch

V D'Odorico, E Bañados, GD Becker… - Monthly Notices of …, 2023 - academic.oup.com
The final phase of the reionization process can be probed by rest-frame UV absorption
spectra of quasars at z≳ 6, shedding light on the properties of the diffuse intergalactic …

The X–shooter/ALMA Sample of Quasars in the Epoch of Reionization. II. Black Hole Masses, Eddington Ratios, and the Formation of the First Quasars

EP Farina, JT Schindler, F Walter… - The Astrophysical …, 2022 - iopscience.iop.org
We present measurements of black hole masses and Eddington ratios (λ Edd) for a sample
of 38 bright (M 1450<− 24.4 mag) quasars at 5.8≲ z≲ 7.5, derived from Very Large …

Suppression of black-hole growth by strong outflows at redshifts 5.8–6.6

M Bischetti, C Feruglio, V D'Odorico, N Arav… - Nature, 2022 - nature.com
Bright quasars, powered by accretion onto billion-solar-mass black holes, already existed at
the epoch of reionization, when the Universe was 0.5–1 billion years old. How these black …

The Pan-STARRS1 distant z> 5.6 quasar survey: more than 100 quasars within the first Gyr of the Universe

E Bañados, BP Venemans, R Decarli… - The Astrophysical …, 2016 - iopscience.iop.org
Luminous quasars at $ z\gt 5.6$ can be studied in detail with the current generation of
telescopes and provide us with unique information on the first gigayear of the universe. Thus …

The final SDSS high-redshift quasar sample of 52 quasars at z> 5.7

L Jiang, ID McGreer, X Fan, MA Strauss… - The Astrophysical …, 2016 - iopscience.iop.org
We present the discovery of nine quasars at $ z\sim 6$ identified in the Sloan Digital Sky
Survey (SDSS) imaging data. This completes our survey of $ z\sim 6$ quasars in the SDSS …

The Pan-STARRS1 z> 5.6 Quasar Survey. III. The z≈ 6 Quasar Luminosity Function

JT Schindler, E Bañados, T Connor… - The Astrophysical …, 2023 - iopscience.iop.org
We present the z≈ 6 type-1 quasar luminosity function (QLF), based on the Pan-STARRS1
(PS1) quasar survey. The PS1 sample includes 125 quasars at z≈ 5.7–6.2, with− 28≲ M …

The X-SHOOTER/ALMA sample of quasars in the epoch of reionization. I. NIR spectral modeling, iron enrichment, and broad emission line properties

JT Schindler, EP Farina, E Bañados… - The Astrophysical …, 2020 - iopscience.iop.org
We present X-SHOOTER near-IR spectroscopy of a large sample of 38 luminous (M 1450=−
29.0 to− 24.4) quasars at 5.78< z< 7.54, which have complementary [C ii] 158μm …