778 citations · 12.9k across the 191 of their papers we have counts for
8 papers · 1 filter
Model-independent evidence in favor of an end to reionization by z~6
Ian McGreer, Andrei Mesinger, Valentina D'Odorico
We present new upper limits on the volume-weighted neutral hydrogen fraction, <xHI>, at z~5-6 derived from spectroscopy of bright quasars. The fraction of the Lyman-alpha and Lyman…
Early galaxy formation in warm dark matter cosmologies
Pratika Dayal, Andrei Mesinger, Fabio Pacucci
We present a framework for high-redshift () galaxy formation that traces their dark matter (DM) and baryonic assembly in four cosmologies: Cold Dark Matter (CDM) and Warm…
Can the intergalactic medium cause a rapid drop in Lyman alpha emission at z>6?
Andrei Mesinger, Aycin Aykutalp, Eros Vanzella +3
The large cross-section of the Lyman alpha (Lya) line makes it a sensitive probe of the ionization state of the intergalactic medium (IGM). Here we present the most complete study…
Feedback-regulated Super Massive Black Hole Seed Formation
Mark Dijkstra, Andrea Ferrara, Andrei Mesinger
The nature of the seeds of high-redshift supermassive black holes (SMBHs) is a key question in cosmology. Direct collapse black holes (DCBH) that form in pristine, atomic-line cool…
The X-ray spectra of the first galaxies: 21cm signatures
Fabio Pacucci, Andrei Mesinger, Stefano Mineo +1
The cosmological 21cm signal is a physics-rich probe of the early Universe, encoding information about both the ionization and the thermal history of the intergalactic medium (IGM)…
New observations of z~7 galaxies: evidence for a patchy reionization
L. Pentericci, E. Vanzella, A. Fontana +18
We present new results from our search for z~7 galaxies from deep spectroscopic observations of candidate z-dropouts in the CANDELS fields. Despite the extremely low flux limits ac…