Fermi Large Area Telescope observations of misaligned active galactic nuclei
| Title: | Fermi Large Area Telescope observations of misaligned active galactic nuclei |
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| Authors: | Abdo AA; Ackermann M; Ajello M; Baldini L; Ballet J; Barbiellini G; Bastieri D; Bechtol K; Bellazzini R; Berenji B; Blandford RD; Bloom ED; Bonamente E; Borgland AW; Bouvier A; Brandt TJ; Bregeon J; Brez A; Brigida M; Bruel P; Buehler R; Burnett TH; Buson S; Caliandro GA; Cameron RA; Cannon A; Caraveo PA; Carrigan S; Casandjian JM; Cavazzuti E; Cecchi C; Celik O; Celotti A; Charles E; Chekhtman A; Chen AW; Cheung CC; Chiang J; Ciprini S; Claus R; Cohen Tanugi J; Colafrancesco S; Conrad J; Davis DS; Dermer CD; de Angelis A; de Palma F; Silva EDE; Drell PS; Dubois R; FAVUZZI, Cecilia; Fegan SJ; Ferrara EC; Fortin P; Frailis M; Fukazawa Y; Fusco P; Gargano F; Gasparrini D; Gehrels N; Germani S; GIGLIETTO, Nicola; Giommi P; Giordano F; Giroletti M; Glanzman T; Godfrey G; Grandi P; Grenier IA; Grove JE; Guillemot L; Guiriec S; Hadasch D; Hayashida M; Hays E; Horan D; Hughes RE; Jackson MS; Johannesson G; Johnson AS; Johnson WN; Kamae T; Katagiri H; Kataoka J; Knodlseder J; Kuss M; Lande J; Latronico L; Lee SH; Lemoine Goumard M; Garde ML; Longo F; Loparco F; Lott B; Lovellette MN; Lubrano P; Madejski GM; Makeev A; Malaguti G; Mazziotta MN; McConville W; McEnery JE; Michelson PF; Migliori G; Mitthumsiri W; Mizuno T; Monte C; Monzani ME; Morselli A; Moskalenko IV; Murgia S; Naumann Godo M; Nestoras I; Nolan PL; Norris JP; Nuss E; Ohsugi T; Okumura A; Omodei N; Orlando E; Ormes JF; Paneque D; Panetta JH; Parent D; Pelassa V; Pepe M; Persic M; Pesce Rollins M; Piron F; Porter TA; Raino S; Rando R; Razzano M; Razzaque S; Reimer A; Reimer O; Reyes LC; Roth M; Sadrozinski HFW; Sanchez D; Sander A; Scargle JD; Sgro C; Siskind EJ; Smith PD; Spandre G; Spinelli P; Stawarz L; Stecker FW; Strickman MS; Suson DJ; Takahashi H; Tanaka T; Thayer JB; Thaver JG; Thompson DJ; Tibaldo L; Torres DF; Torresi E; Tosti G; Tramacere A; Uchiyama Y; Usher TL; Vandenbroucke J; Vasileiou V; Vilchez N; Villata M; Vitale V; Waite AP; Wang P; Winer BL; Wood KS; Yang Z; Ylinen T; Ziegler M. |
| Contributors: | Abdo, Aa; Ackermann, M; Ajello, M; Baldini, L; Ballet, J; Barbiellini, G; Bastieri, D; Bechtol, K; Bellazzini, R; Berenji, B; Blandford, Rd; Bloom, Ed; Bonamente, E; Borgland, Aw; Bouvier, A; Brandt, Tj; Bregeon, J; Brez, A; Brigida, M; Bruel, P; Buehler, R; Burnett, Th; Buson, S; Caliandro, Ga; Cameron, Ra; Cannon, A; Caraveo, Pa; Carrigan, S; Casandjian, Jm; Cavazzuti, E; Cecchi, C; Celik, O; Celotti, A; Charles, E; Chekhtman, A; Chen, Aw; Cheung, Cc; Chiang, J; Ciprini, S; Claus, R; Cohen Tanugi, J; Colafrancesco, S; Conrad, J; Davis, D; Dermer, Cd; de Angelis, A; de Palma, F; Silva, Ede; Drell, P; Dubois, R; Favuzzi, Cecilia; Fegan, Sj; Ferrara, Ec; Fortin, P; Frailis, M; Fukazawa, Y; Fusco, P; Gargano, F; Gasparrini, D; Gehrels, N; Germani, S; Giglietto, Nicola; Giommi, P; Giordano, F; Giroletti, M; Glanzman, T; Godfrey, G; Grandi, P; Grenier, Ia; Grove, Je; Guillemot, L; Guiriec, S; Hadasch, D; Hayashida, M; Hays, E; Horan, D; Hughes, Re; Jackson, M; Johannesson, G; Johnson, A; Johnson, Wn; Kamae, T; Katagiri, H; Kataoka, J; Knodlseder, J; Kuss, M; Lande, J; Latronico, L; Lee, Sh; Lemoine Goumard, M; Garde, Ml; Longo, F; Loparco, F; Lott, B; Lovellette, Mn; Lubrano, P; Madejski, Gm; Makeev, A; Malaguti, G; Mazziotta, Mn |
| Publication Year: | 2010 |
| Collection: | Politecnico di Bari: Iris POLIBA (Catalogo dei prodotti della Ricerca) |
| Subject Terms: | Galaxies: active; galaxies: jet; gamma rays: general |
| Description: | Analysis is presented for 15 months of data taken with the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope for 11 non-blazar active galactic nuclei (AGNs), including seven FRI radio galaxies and four FRII radio sources consisting of two FRII radio galaxies and two steep spectrum radio quasars. The broad line FRI radio galaxy 3C 120 is reported here as a gamma-ray source for the first time. The analysis is based on directional associations of LAT sources with radio sources in the 3CR, 3CRR, and MS4 (collectively referred to as 3C-MS) catalogs. Seven of the eleven LAT sources associated with 3C-MS radio sources have spectral indices larger than 2.3 and, except for the FRI radio galaxy NGC 1275 that shows possible spectral curvature, are well described by a power law. No evidence for time variability is found for any sources other than NGC 1275. The gamma-ray luminosities of FRI radio galaxies are significantly smaller than those of the BL Lac objects detected by the LAT, whereas the gamma-ray luminosities of the FRII sources are quite similar to those of FSRQs, which could reflect different beaming factors for the gamma-ray emission. A core dominance (CD) study of the 3CRR sample indicates that sources closer to the jet axis are preferentially detected with the Fermi LAT, insofar as the gamma-ray-detected misaligned AGNs have larger CD at a given average radio flux. The results are discussed in view of the AGN unification scenario. |
| Document Type: | article in journal/newspaper |
| File Description: | STAMPA |
| Language: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/wos/WOS:000281596000077; volume:720; issue:1; firstpage:912; lastpage:922; numberofpages:11; journal:THE ASTROPHYSICAL JOURNAL; https://hdl.handle.net/11589/1892 |
| DOI: | 10.1088/0004-637X/720/1/912 |
| Availability: | https://hdl.handle.net/11589/1892; https://doi.org/10.1088/0004-637X/720/1/912 |
| Rights: | info:eu-repo/semantics/openAccess ; license:Tutti i diritti riservati |
| Accession Number: | edsbas.BC353CF1 |
| Database: | BASE |