Blazar Duty-Cycle at gamma-ray Frequecies: Constraints from Extragalactic Background Radiation and Prospects for AGILE and GLAST

TL;DR

This paper estimates the maximum gamma-ray duty cycle for WMAP Blazars constrained by the extragalactic background radiation, and assesses their detectability prospects with AGILE and GLAST based on survey data.

Contribution

It introduces a method to constrain blazar gamma-ray duty cycles using background radiation and evaluates their detectability with upcoming gamma-ray missions.

Findings

Identifies blazars detectable in steady state without overestimating background

Provides duty cycle constraints based on extragalactic gamma-ray background

Highlights potential for AGILE and GLAST to observe these blazars

Abstract

We take into account the constraints from the observed extragalactic gamma-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 gamma-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.