activity
20022026
most citedLow-Mass Relics of Early Star Formation

250 citations · 1.8k across the 31 of their papers we have counts for

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Showing astro-ph.COShow all

5 papers · 1 filter

astro-ph.CO2022★ 33 cited

Cosmic radiation backgrounds from primordial black holes

Francesco Ziparo, Simona Gallerani, Andrea Ferrara +1

Recent measurements of the cosmic X-ray and radio backgrounds (CXB/CRB, respectively) obtained with Chandra and ARCADE2 report signals in excess of those expected from known source…

astro-ph.CO2011★ 61 cited

Joint QSO-CMB constraints on reionization history

Sourav Mitra, T. Roy Choudhury, Andrea Ferrara

Based on the work by Mitra, Choudhury & Ferrara (2010), we obtain model-independent constraints on reionization from cosmic microwave background (CMB) and QSO absorption line data…

astro-ph.CO2011★ 31 cited

Turbulence in the Intergalactic Medium

Carmelo Evoli, Andrea Ferrara

We study supernova-driven galactic outflows as a mechanism for injecting turbulence in the intergalactic medium (IGM) far from galaxies. To this aim we follow the evolution of a 10…

astro-ph.CO2009

Constraining cosmic reionization with quasar, gamma ray burst, and Lya emitter observations

S. Gallerani, A. Ferrara, T. R. Choudhury +3

We investigate the cosmic reionization history by comparing semi-analytical models of the Lya forest with observations of high-z quasars and gamma ray bursts absorption spectra. In…

astro-ph.CO2009★ 10 cited

WIMP annihilation effects on primordial star formation

E. Ripamonti, F. Iocco, A. Bressan +3

We study the effects of WIMP dark matter (DM) annihilations on the thermal and chemical evolution of the gaseous clouds where the first generation of stars in the Universe is forme…