91 citations · 442 across the 28 of their papers we have counts for
10 papers · 1 filter
Percent-level timing of reionization: self-consistent, implicit-likelihood inference from XQR-30+ Ly forest data
Yuxiang Qin, Andrei Mesinger, David Prelogović +13
The Lyman alpha (Lya) forest in the spectra of z>5 quasars provides a powerful probe of the late stages of the Epoch of Reionization (EoR). With the recent advent of exquisite data…
Discovering Changing-Look AGN in the 6dF Galaxy Survey using ATLAS Light curves
Neelesh Amrutha, Christian Wolf, Christopher A. Onken +4
Changing-Look Active Galactic Nuclei (CLAGN) are characterised by extreme variations in line emission over short timescales, mostly affecting broad H lines. While a few hundred…
No Redshift Evolution in the Fe II/Mg II Flux Ratios of Quasars across Cosmic Time
Danyang Jiang, Masafusa Onoue, Linhua Jiang +13
The Fe II/Mg II emission line flux ratio in quasar spectra serves as a proxy for the relative Fe to alpha-element abundances in the broad line regions of quasars. Due to the expect…
Damping Wing-Like Features in the Stacked Ly Forest: Potential Neutral Hydrogen Islands at
Yongda Zhu, George D. Becker, Sarah E. I. Bosman +28
Recent quasar absorption line observations suggest that reionization may end as late as . As a means to search for large neutral hydrogen islands at , we revisi…
Supermassive black holes are growing slowly by
Samuel Lai, Christopher A. Onken, Christian Wolf +2
We investigate the black hole mass function at using XQz5, our recent sample of the most luminous quasars between the redshifts . We include 72 quasars with…
Multi-phase black-hole feedback and a bright [CII] halo in a Lo-BAL quasar at
Manuela Bischetti, Hyunseop Choi, Fabrizio Fiore +18
Although the mass growth of supermassive black holes during the Epoch of Reionisation is expected to play a role in shaping the concurrent growth of their host-galaxies, observatio…
IGM damping wing constraints on the tail end of reionisation from the enlarged XQR-30 sample
Bradley Greig, Andrei Mesinger, Eduardo Bañados +16
The attenuation of Ly photons by neutral hydrogen in the intergalactic medium (IGM) at continues to be a powerful probe for studying the epoch of reionisation. Given…
Evidence of Pop~III stars' chemical signature in neutral gas at z~6. A study based on the E-XQR-30 spectroscopic sample
Alessio Sodini, Valentina D'Odorico, Stefania Salvadori +16
This study explores the metal enrichment signatures attributed to the first generation of stars (PopIII) in the Universe, focusing on the E-XQR-30 sample. We aim to identify traces…
E-XQR-30: The evolution of MgII, CII and OI across 2<z<6
Alma Maria Sebastian, Emma Ryan-Weber, Rebecca L. Davies +12
Intervening metal absorbers in quasar spectra at can be used as probes to study the chemical enrichment of the Universe during the Epoch of Reionization (EoR). This work pr…
The accretion of a solar mass per day by a 17-billion solar mass black hole
Christian Wolf, Samuel Lai, Christopher A. Onken +5
Around a million quasars have been catalogued in the Universe by probing deeper and using new methods for discovery. However, the hardest ones to find seem to be the rarest and bri…