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  • Radio-Loud Narrow-Line Seyf...
    Abdo, A. A; Ajello, M; Ballet, J; Barbiellini, G; Bastieri, D; Bechtol, K; Bloom, E. D; Bonamente, E; Borgland, A. W; Brigida, M; Bruel, P; Burnett, T. H; Caliandro, G. A; Caraveo, P. A; Casandjian, J. M; Cecchi, C; Çelik, Ö; Chekhtman, A; Ciprini, S; Claus, R; Conrad, J; Dermer, C. D; de Palma, F; do Couto e Silva, E; Drell, P. S; Dubois, R; Farnier, C; Fegan, S. J; Focke, W. B; Foschini, L; Frailis, M; Fukazawa, Y; Fusco, P; Gargano, F; Germani, S; Giebels, B; Giglietto, N; Glanzman, T; Godfrey, G; Guillemot, L; Guiriec, S; Hayashida, M; Horan, D; Jóhannesson, G; Kadler, M; Kamae, T; Katagiri, H; Kerr, M; Knödlseder, J; Kuss, M; Latronico, L; Longo, F; Loparco, F; Lott, B; Lubrano, P; Makeev, A; Mazziotta, M. N; McConville, W; McEnery, J. E; Mizuno, T; Moskalenko, I. V; Murgia, S; Nolan, P. L; Ohsugi, T; Omodei, N; Orlando, E; Ormes, J. F; Pelassa, V; Persic, M; Pesce-Rollins, M; Porter, T. A; Rainò, S; Razzano, M; Rochester, L. S; Rodriguez, A. Y; Ryde, F; Sadrozinski, H. F.-W; Sambruna, R; Sander, A; Saz Parkinson, P. M; Scargle, J. D; Smith, P. D; Suson, D. J; Tagliaferri, G; Takahashi, H; Takahashi, T; Thayer, J. B; Thayer, J. G; Tibaldo, L; Tibolla, O; Usher, T. L; Vasileiou, V; Vilchez, N; Vitale, V; Wood, K. S; Ylinen, T; Ziegler, M; Ghisellini, G; Maraschi, L; Tavecchio, and F

    The Astrophysical journal, 12/2009, Letnik: 707, Številka: 2
    Journal Article

    In this work, we report the discovery with Fermi/LAT of γ-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 γ rays, they may form an emerging new class of γ-ray active galactic nuclei (AGNs). Lastly, these findings can have strong implications on our knowledge about relativistic jets and the unified model of the AGN.