Quasars and the intergalactic medium at cosmic dawn

X Fan, E Bañados, RA Simcoe - Annual Review of Astronomy …, 2023 - annualreviews.org
Quasars at cosmic dawn provide powerful probes of the formation and growth of the earliest
supermassive black holes (SMBHs) in the Universe, their connections to galaxy and …

The eROSITA Final Equatorial Depth Survey (eFEDS)-X-ray catalogue

H Brunner, T Liu, G Lamer, A Georgakakis… - Astronomy & …, 2022 - aanda.org
Context. The eROSITA X-ray telescope on board the Spectrum-Poentgen-Gamma (SPG)
observatory combines a large field of view and a large collecting area in the energy range …

The eROSITA Final Equatorial-Depth Survey (eFEDS)-Identification and characterization of the counterparts to point-like sources

M Salvato, J Wolf, T Dwelly, A Georgakakis… - Astronomy & …, 2022 - aanda.org
Context. In November 2019, eROSITA on board of the Spektrum-Roentgen-Gamma (SRG)
observatory started to map the entire sky in X-rays. After the four-year survey program, it will …

BASS. XXI. The Data Release 2 Overview

MJ Koss, B Trakhtenbrot, C Ricci… - The Astrophysical …, 2022 - iopscience.iop.org
Abstract The BAT AGN Spectroscopic Survey (BASS) is designed to provide a highly
complete census of the key physical parameters of the supermassive black holes (SMBHs) …

SRG X-ray orbital observatory-Its telescopes and first scientific results

R Sunyaev, V Arefiev, V Babyshkin… - Astronomy & …, 2021 - aanda.org
The orbital observatory Spectrum-Roentgen-Gamma (SRG), equipped with the grazing-
incidence X-ray telescopes Mikhail Pavlinsky ART-XC and eROSITA, was launched by …

[HTML][HTML] The eROSITA Final Equatorial-Depth Survey (eFEDS)-Galaxy clusters and groups in disguise

E Bulbul, A Liu, T Pasini, J Comparat… - Astronomy & …, 2022 - aanda.org
Aims. The eROSITA Final Equatorial-Depth Survey (eFEDS), executed during the
performance verification phase of the Spectrum-Roentgen-Gamma (SRG)/eROSITA …

The LOFAR two-metre sky survey-V. Second data release

TW Shimwell, MJ Hardcastle, C Tasse, PN Best… - Astronomy & …, 2022 - aanda.org
In this data release from the ongoing LOw-Frequency ARray (LOFAR) Two-metre Sky
Survey we present 120–168 MHz images covering 27% of the northern sky. Our coverage is …

X-ray emission from a rapidly accreting narrow-line Seyfert 1 galaxy at z= 6.56

J Wolf, K Nandra, M Salvato, J Buchner… - Astronomy & …, 2023 - aanda.org
Context. The space density of X-ray-luminous, blindly selected active galactic nuclei (AGN)
traces the population of rapidly accreting super-massive black holes through cosmic time. It …

New X-ray detections of magnetic period-bounce cataclysmic variables from XMM-Newton and SRG/eROSITA

D Muñoz-Giraldo, B Stelzer, D de Martino… - Astronomy & …, 2023 - aanda.org
Context. A great portion of the cataclysmic variable population, between 40% and 70%, is
predicted to be made up of period-bouncers, systems with degenerate donors that have …

Conditions for direct black hole seed collapse near a radio-loud quasar 1 Gyr after the Big Bang

RA Overzier - The Astrophysical Journal, 2022 - iopscience.iop.org
Observations of luminous quasars and their supermassive black holes at z≳ 6 suggest that
they formed at dense matter peaks in the early universe. However, few studies have found …