Paola Grandi, for the FERMI-LAT Collaboration
We review the high energy properties of Misaligned AGNs associated with
gamma-ray sources detected by Fermi in 24 months of survey. Most of them are
nearby emission low power radio galaxies (i.e FRIs) which probably have
structured jets. On the contrary, high power radio sources (i.e FRIIs) with GeV
emission are rare. The small number of FRIIs does not seem to be related to
their higher redshifts. Assuming proportionality between the radio core flux
and the gamma-ray flux, several of them are expected to be bright enough to be
detected above 100 MeV in spite of their distance. We suggest that beaming/jet
structural differences are responsible for the detection rate discrepancy
observed between FRIs and FRIIs.
View original:
http://arxiv.org/abs/1112.2505
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