L. Foschini, G. Ghisellini, L. Maraschi, G. Tagliaferri, F. Tavecchio, Y. Y. Kovalev, Yu. A. Kovalev, M. L. Lister, J. L. Richards, F. D'Ammando, D. J. Thompson, D. Donato, A. Tramacere, E. Angelakis, L. Fuhrmann, I. Nestoras, A. Falcone, M. Hauser, S. Wagner, K. Mannheim, O. Tibolla, W. Max-Moerbeck, V. Pavlidou, A. C. S. Readhead, M. A. Stevenson, A. B. Pushkarev
We report about the multiwavelength campaign on the Narrow-Line Seyfert 1
(NLS1) Galaxy PMN J0948+0022 (z = 0.5846) performed in 2010 July-September and
triggered by high activity as measured by Fermi/LAT. The peak luminosity in the
0.1-100 GeV energy band exceeded, for the first time in this type of source,
the value of 10^48 erg/s, a level comparable to the most powerful blazars. The
comparison of the spectral energy distribution of the NLS1 PMN J0948+0022 with
that of a typical blazar - like 3C 273 - shows that the power emitted at gamma
rays is extreme.
View original:
http://arxiv.org/abs/1110.5649
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