250 citations · 1.8k across the 31 of their papers we have counts for
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The Energy Cascade from Warm Dark Matter Decays
M. Valdés, A. Ferrara
We use a set of Monte Carlo simulations to follow the cascade produced by a primary electron of energy E_in in the intergalactic medium. We choose E_in=3-10 keV as expected from th…
Was the Universe neutral beyond redshift six?
S. Gallerani, A. Ferrara, X. Fan +2
We provide measurements of the neutral hydrogen fraction xHI at z~6, by comparing semi-analytical models of the Lyalpha forest with observations of high-z quasars and Gamma Ray Bur…
On the minimum mass of reionization sources
T. Roy Choudhury, A. Ferrara, S. Gallerani
By means of carefully calibrated semi-analytical reionization models, we estimate the minimum mass of star-forming haloes required to match the current data. Models which do not in…
Testing Reionization with Gamma Ray Burst Absorption Spectra
S. Gallerani, R. Salvaterra, A. Ferrara +1
We propose to study cosmic reionization using absorption line spectra of high-redshift Gamma Ray Burst (GRB) afterglows. We show that the statistics of the dark portions (gaps) in…
Glimpsing through the high redshift neutral hydrogen fog
S. Gallerani, A. Ferrara, X. Fan +1
We analyze the transmitted flux in a sample of 17 QSOs spectra at 5.74<zem<6.42 to obtain tighter constraints on the volume-averaged neutral hydrogen fraction, xHI, at z~6. We stud…
Absorption features of high redshift galactic winds
A. P. M. Fangano, A. Ferrara, P. Richter
The environment of high-redshift galaxies is characterized by both wind-driven outflowing gas and gravitationally infalling streams. To investigate such galaxy-IGM interplay we hav…