Astronomy and Astrophysics – Astrophysics – High Energy Astrophysical Phenomena
Scientific paper
2011-08-06
Astronomy and Astrophysics
Astrophysics
High Energy Astrophysical Phenomena
6 pages, 5 figures, submitted for publication in the proceedings of the workshop; "Beamed and Unbeamed Gamma-rays from Galaxie
Scientific paper
The origin of the extragalactic gamma-ray background (EGRB) radiation has been a mystery in astrophysics for a long time. Recently the Fermi gamma-ray satellite (Fermi) has revealed that ~22% of the unresolved EGRB would be explained by blazars, which are one population of beamed active galactic nuclei (AGNs). The remaining ~78% of the unresolved EGRB is still unknown. We estimate the contribution of gamma-ray loud radio galaxies, which are misaligned radio loud AGNs recently detected by Fermi, to EGRB using the radio luminosity function of radio-loud AGNs with the correlation between the radio and gamma-ray luminosities. We find that ~25% of the unresolved EGRB will be explained by gamma-ray loud radio galaxy population. We also discuss further about the origin of EGRB by comparing the Fermi EGRB data with our studies on various AGN populations' contribution to EGRB, which are radio quiet AGNs, blazars, and gamma-ray loud radio galaxies.
No associations
LandOfFree
Extragalactic Gamma-ray Background Radiation from Beamed and Unbeamed Active Galactic Nuclei does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Extragalactic Gamma-ray Background Radiation from Beamed and Unbeamed Active Galactic Nuclei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extragalactic Gamma-ray Background Radiation from Beamed and Unbeamed Active Galactic Nuclei will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1313