We present the X-ray source number counts in two energy bands (0.5–2 and 2–10 keV) from
a very large source sample: we combine data of six different surveys, both shallow wide-field …

This review covers the measurements related to the extragalactic background light intensity
from γ-rays to radio in the electromagnetic spectrum over 20 decades in wavelength. The …

In this paper, we provide updated constraints on the bolometric quasar luminosity function
(QLF) from z= 0 to z= 7. The constraints are based on an observational compilation that …

The γ-ray sky can be decomposed into individually detected sources, diffuse emission
attributed to the interactions of Galactic cosmic rays with gas and radiation fields, and a …

We present new measurements of the evolution of the X-ray luminosity functions (XLFs) of
unabsorbed and absorbed active galactic nuclei (AGNs) out to z∼ 5. We construct samples …

We present X-ray source catalogs for the≈ 7 Ms exposure of the Chandra Deep Field-South
(CDF-S), which covers a total area of 484.2 arcmin 2. Utilizing wavdetect for initial source …

We present the most up to date X-ray luminosity function (XLF) and absorption function of
active galactic nuclei (AGNs) over the redshift range from 0 to 5, utilizing the largest, highly …

We present a detailed and self-consistent modeling of the cosmic X-ray background (XRB)
based on the most up-to-date X-ray luminosity functions (XLF) and evolution of Active …

Radio and far infrared luminosities of star-forming galaxies follow a tight linear relation.
Making use of ASCA and BeppoSAX observations of a well-defined sample of nearby star …

We present point-source catalogs for the≈ 2 Ms exposure of the Chandra Deep Field North,
currently the deepest X-ray observation of the universe in the 0.5–8.0 keV band. Five …