Continuing GeV activity of the Narrow-Line Seyfert 1 PMN J0948+0022

Astronomy and Astrophysics – Astronomy

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Gamma Ray, >Gev, Request For Observations, Agn, Quasars, Transients

Scientific paper

The gamma-ray Narrow-Line Seyfert 1 PMN J0948+0022 (z=0.585, Abdo et al., 2009, ApJ, 699, 976; Foschini et al., arXiv:0908.3313; Abdo et al., 2009, 700, 727), whose GeV activity has been recently reported by Donato et al. (ATEL #2733, 12 July 2010), is continuing its gamma-ray outburst. After a short period of quiescence (i.e. non-detection by Fermi/LAT on daily basis) following the outburst described in the ATEL #2733, PMN J0948+0022 was again detected at high flux on 21 July 2010 (MJD 55398).

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