Blazar duty-cycle at γ-ray frequencies: constraints from extragalactic background radiation and prospects for AGILE and GLAST
Abstract
We take into account the constraints from the observed extragalactic γ-ray background to estimate the maximum duty cycle allowed for a selected sample of WMAP Blazars, in order to be detectable by AGILE and GLAST γ-ray experiments. For the nominal sensitivity values of both instruments, we identify a subset of sources which can in principle be detectable also in a steady state without over-predicting the extragalactic background. This work is based on the results of a recently derived Blazar radio LogN-LogS obtained by combining several multi-frequency surveys.
- Publication:
-
Astrophysics and Space Science
- Pub Date:
- June 2007
- DOI:
- 10.1007/s10509-007-9458-z
- arXiv:
- arXiv:0705.0645
- Bibcode:
- 2007Ap&SS.309...89P
- Keywords:
-
- Blazar;
- AGN;
- Extragalactic background;
- 95.85.Pw;
- 98.54.Cm;
- 98.62.Ve;
- Astrophysics
- E-Print:
- 4 pages, 5 figures, 3 tables. Proceedings of: "The Multi-Messenger Approach to High-Energy Gamma-Ray Sources" (Barcelona 2006)