Radio variability of 1st 3-months Fermi blazars at 5 GHz: affected by interstellar scintillation?

Details Radio variability of 1st 3-months Fermi blazars at 5 GHz: affected by interstellar scintillation? Radio variability of 1st 3-months Fermi blazars at 5 GHz: affected by interstellar scintillation?

2011-01-24

arxiv.org/abs/1101.4482v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

4 pages, 4 figures, in proceedings of 'Multiwavelength Variability of Blazars' in Guangzhou Uni. of China, 22-24, Sep. 2010, t

Scientific paper

Blazars from the first-three-months Fermi-AGN list were observed with the Urumqi 25m radio telescope at 5GHz in IDV (Intra-Day Variability) mode and inter-month observation mode. A significant correlation between the flux density at 5GHz and the gamma-ray intensity for the Fermi-LAT detected blazars is seen. There is a higher IDV detection rate in Fermi detected blazars than those reported for other samples. Stronger variability appears at lower Galactic latitudes; IDV appears to be stronger in weaker sources, indicating that the variability is affected by interstellar scintillation.

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