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  • Fermi Gamma-Ray Imaging of ...
    Abdo, A A; Ajello, M; Ballet, J; Barbiellini, G; Brez, A; Bruel, P; Burnett, T H; Caliandro, G A; Casandjian, J M; Chiang, J; Ciprini, S; Colafrancesco, S; Conrad, J; Cutini, S; Davis, D S; Dermer, C D; de Angelis, A; de Palma, F; Digel, S W; Drell, P S; Dumora, D; Farnier, C; Fegan, S J; Focke, W B; Fukazawa, Y; Gasparrini, D; Gehrels, N; Georganopoulos, M; Giebels, B; Giroletti, M; Glanzman, T; Godfrey, G; Grenier, I A; Guillemot, L; Guiriec, S; Harding, A K; Hayashida, M; Hughes, R E; Jackson, M S; Jóhannesson, G; Johnson, A S; Katagiri, H; Kataoka, J; Kerr, M; Knödlseder, J; Kocian, M L; Lande, J; Longo, F; Loparco, F; Lott, B; Lubrano, P; Madejski, G M; Makeev, A; Michelson, P F; Mizuno, T; Moiseev, A A; Monte, C; Moskalenko, I V; Murgia, S; Norris, J P; Ohsugi, T; Orlando, E; Ormes, J F; Paneque, D; Parent, D; Pelassa, V; Pepe, M; Piron, F; Porter, T A; Rainò, S; Rando, R; Razzano, M; Razzaque, S; Reimer, O; Rochester, L S; Romani, R W; Roth, M; Ryde, F; Saz Parkinson, P M; Smith, D A; Spandre, G; Spinelli, P; Tajima, H; Takahashi, H; Takahashi, T; Thayer, J B; Thompson, D J; Tibaldo, L; Torres, D F; Uchiyama, Y; Usher, T L; Vilchez, N; Vitale, V; Wallace, E; Wang, P; Winer, B L; Wood, K S; Ylinen, T; Ziegler, M; Hardcastle, M J

    Science, 05/2010, Letnik: 328, Številka: 5979
    Journal Article

    The Fermi Gamma-ray Space Telescope has detected the γ-ray glow emanating from the giant radio lobes of the radio galaxy Centaurus A. The resolved γ-ray image shows the lobes clearly separated from the central active source. In contrast to all other active galaxies detected so far in high-energy γ-rays, the lobe flux constitutes a considerable portion (greater than one-half) of the total source emission. The γ-ray emission from the lobes is interpreted as inverse Compton-scattered relic radiation from the cosmic microwave background, with additional contribution at higher energies from the infrared-to-optical extragalactic background light.These measurements provide ã-ray constraints on the magnetic field and particle energy content in radio galaxy lobes, as well as a promising method to probe the cosmic relic photon fields.