Narrow-Line Seyfert 1 (NLS1) class of active galactic nuclei (AGNs) is generally radio-quiet, but a small percent of them are radio-loud. The recent discovery by Fermi/LAT of high-energy gamma-ray emission from 4 NLS1s proved the existence of relativistic jets in these systems. It is therefore important to study this new class of gamma-ray emitting AGNs. Here we report preliminary results about the observations of the July 2010 gamma-ray outburst of PMN J0948+0022, when the source flux exceeded for the first time 10^-6 ph cm^-2 s^-1 (E > 100 MeV).
@article{arxiv.1009.1055,
title = {Relativistic jets in Narrow-Line Seyfert 1},
author = {L. Foschini and E. Angelakis and G. Bonnoli and G. Calderone and M. Colpi and F. D'Ammando and D. Donato and A. Falcone and L. Fuhrmann and G. Ghisellini and G. Ghirlanda and M. Hauser and Y. Y. Kovalev and L. Maraschi and E. Nieppola and J. Richards and A. Stamerra and G. Tagliaferri and F. Tavecchio and D. J. Thompson and O. Tibolla and A. Tramacere and S. Wagner},
journal= {arXiv preprint arXiv:1009.1055},
year = {2015}
}
Comments
2 pages, 1 figure. To be presented at IAU Symposium 275 "Jets at all scales", Buenos Aires, 13-17 September 2010