Article

GeV-TeV Blazar Population Studies

11/2011;
Source: arXiv

ABSTRACT The synergy between the Fermi-LAT and ground-based Cherenkov telescope arrays
gives us the opportunity for the first time to characterize the high energy
emission (100 MeV - 10 TeV) from more than 30 blazars. In this study we
performed a Fermi-LAT spectral analysis for all TeV-detected blazars and
combined it with archival TeV spectra. Our results for low synchrotron-peaked
BL Lacs (LBL) show hints of absorption features in the GeV band that could be
interpreted as internal opacity at the source. We note that simple or broken
power laws cannot describe all the observed GeV-TeV spectra and more complex
spectral shapes seem required.

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