Astronomy and Astrophysics – Astrophysics – High Energy Astrophysical Phenomena
Scientific paper
2011-07-14
International Journal of Modern Physics: Conference Series, vol. 8 (2012), p. 172-177
Astronomy and Astrophysics
Astrophysics
High Energy Astrophysical Phenomena
6 pages, 2 figures. Minor corrections after the referee's report. Contribution for the Proceedings of HEPRO3 (Barcelona, 27 Ju
Scientific paper
10.1142/S2010194512004564
The discovery of high-energy (E>100 MeV) gamma rays from Narrow-Line Seyfert 1 Galaxies (gamma-NLS1s) has confirmed the presence of powerful relativistic jets in this class of active galactic nuclei (AGN). Although the jet emission is similar to that of blazars and radio galaxies, gamma-NLS1s have some striking differences: relatively small masses (10^6-10^8 M_sun), high accretion rates (0.1-1 times the Eddington limit) and are generally hosted by spiral galaxies. It is now possible to study a rather unexplored range of mass and accretion rates of AGN with relativistic jets. Specifically, in this work I present some results obtained by comparing a sample of blazars and gamma-NLS1s with another sample of Galactic binaries with relativistic jets (stellar mass black holes and neutron stars).
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