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arxiv: 1201.0999 · v1 · submitted 2012-01-04 · 🌌 astro-ph.HE · astro-ph.CO

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Spectroscopy of Broad Line Blazars from 1LAC

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classification 🌌 astro-ph.HE astro-ph.CO
keywords opticalfermifsrqradioevengamma-raypopulationsample
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We report on optical spectroscopy of 165 Flat Spectrum Radio Quasars (FSRQs) in the Fermi 1LAC sample, which have helped allow a nearly complete study of this population. Fermi FSRQ show significant evidence for non-thermal emission even in the optical; the degree depends on the gamma-ray hardness. They also have smaller virial estimates of hole mass than the optical quasar sample. This appears to be largely due to a preferred (axial) view of the gamma-ray FSRQ and non-isotropic (H/R ~ 0.4) distribution of broad-line velocities. Even after correction for this bias, the Fermi FSRQ show higher mean Eddington ratios than the optical population. A comparison of optical spectral properties with Owens Valley Radio Observatory radio flare activity shows no strong correlation.

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