Radio-loud AGN contribution to the Extragalactic Gamma-Ray Background
  Origin of extragalactic gamma-ray background (EGRB) is still a matter of
debate. EGRB can either have truly diffuse or unresolved discrete point sources
origin. Majority of the Fermi and EGRET detected identified sources are blazar.
So, they are expected to be a significant contributors to the EGRB. In order to
estimate their contribution to the EGRB one needs to construct their luminosity
functions. Here, we examine and construct the evolution and luminosity function
of blazars using first LAT AGN catalog. We consider both pure luminosity and
pure density evolution models for flat spectrum radio quasars (FSRQs). We also
describe the methodology to estimate the contribution from misaligned blazars
to the EGRB.
