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arXiv · 0911.3485

Radio-Loud Narrow-Line Seyfert 1 as a New Class of Gamma-Ray AGN

LAT Collaboration·G. Ghisellini·L. Maraschi·F. Tavecchio
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Abstract

We report the discovery with Fermi/LAT of gamma-ray emission from three radio-loud narrow-line Seyfert 1 galaxies: PKS 1502+036 (z=0.409), 1H 0323+342 (z=0.061) and PKS 2004-447 (z=0.24). In addition to PMN J0948+0022 (z=0.585), the first source of this type to be detected in gamma rays, they may form an emerging new class of gamma-ray active galactic nuclei (AGN). These findings can have strong implications on our knowledge about relativistic jets and the unified model of AGN.

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LAT Collaboration, G. Ghisellini, L. Maraschi, F. Tavecchio. 2009-11-18. Radio-Loud Narrow-Line Seyfert 1 as a New Class of Gamma-Ray AGN. https://doi.org/10.1088/0004-637x/707/2/l142

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