991 citations · 18.7k across the 255 of their papers we have counts for
8 papers · 1 filter
Where are the missing cosmic metals ?
A. Ferrara, E. Scannapieco, J. Bergeron
The majority of the heavy elements produced by stars 2 billion years after the Big Bang (redshift z~3) are presently undetected at those epochs. We propose a solution to this cosmi…
Where are the sources of the Near Infrared Background?
R. Salvaterra, A. Ferrara
The observed near infrared background excess over light from known galaxies is commonly ascribed to redshifted radiation from early, very massive, PopIII stars. We show here that t…
Background radiation from sterile neutrino decay and reionization
M. Mapelli, A. Ferrara
Sterile neutrinos are one of the most promising Warm Dark Matter candidates. By considering their radiative- and pion-decay channels, we derive the allowed contribution of sterile…
Detecting Primordial Stars
Evan Scannapieco, Andrea Ferrara, Alexander Heger +3
We study the detectability of primordial metal-free stars. Cosmological enrichment is a local process that takes place over an extended redshift range. While the duration of this t…
The Detectability of Pair-Production Supernovae at z < 6
Evan Scannapieco, Piero Madau, Stan Woosley +2
Nonrotating, zero metallicity stars with initial masses 140 < M < 260 solar masses are expected to end their lives as pair-production supernovae (PPSNe), in which an electron-posit…
Thermal and Fragmentation Properties of Star-forming Clouds in Low-metallicity Environments
K. Omukai, T. Tsuribe, R. Schneider +1
The thermal and chemical evolution of star-forming clouds is studied for different gas metallicities, Z, using the model of Omukai (2000), updated to include deuterium chemistry an…