4 papers · 1 filter
Extragalactic Background Light, MACHOs, and the Cosmic Stellar Baryon Budget
Piero Madau, Francesco Haardt, Lucia Pozzetti
The optical/far-IR extragalactic background light (EBL) from both resolved and unresolved extragalactic sources is an indicator of the total luminosity of cosmic structures, as the…
The Optical Extragalactic Background Light from Resolved Galaxies
Lucia Pozzetti, Piero Madau
We discuss the ultraviolet to near-IR galaxy counts from the deepest imaging surveys, including the northern and southern Hubble Deep Fields. The logarithmic slope of the galaxy nu…
Probing the End of the Dark Ages
Piero Madau
In currently popular cosmological scenarios -- all variants of the cold dark matter (CDM) cosmogony -- some time beyond a redshift of 15, stars within the numerous small halos that…
The Intergalactic Medium
Piero Madau
About half a million years after the Big Bang, the ever-fading cosmic blackbody radiation cooled below 3000 K and shifted first into the infrared and then into the radio, and the s…