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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 10351naa a2202737 4500 | |
| 001 | oai:DiVA.org:kth-26900 | |
| 003 | SwePub | |
| 008 | 101129s2010 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-269002 URI |
| 024 | 7 | a https://doi.org/10.1088/0004-637X/719/2/14332 DOI |
| 040 | a (SwePub)kth | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Abdo, A. A.4 aut |
| 245 | 1 0 | a FERMI LARGE AREA TELESCOPE VIEW OF THE CORE OF THE RADIO GALAXY CENTAURUS A |
| 264 | 1 | c 2010 |
| 338 | a print2 rdacarrier | |
| 500 | a QC 20101129 | |
| 520 | a We present gamma-ray observations with the Large Area Telescope (LAT) on board the Fermi Gamma-Ray Space Telescope of the nearby radio galaxy Centaurus A (Cen A). The previous EGRET detection is confirmed, and the localization is improved using data from the first 10 months of Fermi science operation. In previous work, we presented the detection of the lobes by the LAT; in this work, we concentrate on the gamma-ray core of Cen A. Flux levels as seen by the LAT are not significantly different from that found by EGRET, nor is the extremely soft LAT spectrum (Gamma = 2.67 +/- 0.10(stat) +/- 0.08(sys) where the photon flux is Phi alpha E-Gamma). The LAT core spectrum, extrapolated to higher energies, is marginally consistent with the non-simultaneous HESS spectrum of the source. The LAT observations are complemented by simultaneous observations from Suzaku, the Swift Burst Alert Telescope and X-ray Telescope, and radio observations with the Tracking Active Galactic Nuclei with Austral Milliarcsecond Interferometry program, along with a variety of non-simultaneous archival data from a variety of instruments and wavelengths to produce a spectral energy distribution (SED). We fit this broadband data set with a single-zone synchrotron/synchrotron self-Compton model, which describes the radio through GeV emission well, but fails to account for the non-simultaneous higher energy TeV emission observed by HESS from 2004 to 2008. The fit requires a low Doppler factor, in contrast to BL Lac objects which generally require larger values to fit their broadband SEDs. This indicates that the gamma-ray emission originates from a slower region than that from BL Lac objects, consistent with previous modeling results from Cen A. This slower region could be a slower moving layer around a fast spine, or a slower region farther out from the black hole in a decelerating flow. The fit parameters are also consistent with Cen A being able to accelerate ultra-high energy cosmic-rays, as hinted at by results from the Auger observatory. | |
| 650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
| 653 | a galaxies: active | |
| 653 | a galaxies: individual (Centaurus A) | |
| 653 | a galaxies: jets | |
| 653 | a gamma rays: galaxies | |
| 653 | a radiation mechanisms: non-thermal | |
| 653 | a Astronomy and astrophysics | |
| 653 | a Astronomi och astrofysik | |
| 700 | 1 | a Ackermann, M.4 aut |
| 700 | 1 | a Ajello, M.4 aut |
| 700 | 1 | a Atwood, W. B.4 aut |
| 700 | 1 | a Baldini, L.4 aut |
| 700 | 1 | a Ballet, J.4 aut |
| 700 | 1 | a Barbiellini, G.4 aut |
| 700 | 1 | a Bastieri, D.4 aut |
| 700 | 1 | a Baughman, B. M.4 aut |
| 700 | 1 | a Bechtol, K.4 aut |
| 700 | 1 | a Bellazzini, R.4 aut |
| 700 | 1 | a Berenji, B.4 aut |
| 700 | 1 | a Blandford, R. D.4 aut |
| 700 | 1 | a Bloom, E. D.4 aut |
| 700 | 1 | a Bonamente, E.4 aut |
| 700 | 1 | a Borgland, A. W.4 aut |
| 700 | 1 | a Bouvier, A.4 aut |
| 700 | 1 | a Brandt, T. J.4 aut |
| 700 | 1 | a Bregeon, J.4 aut |
| 700 | 1 | a Brez, A.4 aut |
| 700 | 1 | a Brigida, M.4 aut |
| 700 | 1 | a Bruel, P.4 aut |
| 700 | 1 | a Buehler, R.4 aut |
| 700 | 1 | a Buson, S.4 aut |
| 700 | 1 | a Caliandro, G. A.4 aut |
| 700 | 1 | a Cameron, R. A.4 aut |
| 700 | 1 | a Cannon, A.4 aut |
| 700 | 1 | a Caraveo, P. A.4 aut |
| 700 | 1 | a Carrigan, S.4 aut |
| 700 | 1 | a Casandjian, J. M.4 aut |
| 700 | 1 | a Cavazzuti, E.4 aut |
| 700 | 1 | a Cecchi, C.4 aut |
| 700 | 1 | a Celik, Oe4 aut |
| 700 | 1 | a Charles, E.4 aut |
| 700 | 1 | a Chekhtman, A.4 aut |
| 700 | 1 | a Cheung, C. C.4 aut |
| 700 | 1 | a Chiang, J.4 aut |
| 700 | 1 | a Ciprini, S.4 aut |
| 700 | 1 | a Claus, R.4 aut |
| 700 | 1 | a Cohen-Tanugi, J.4 aut |
| 700 | 1 | a Colafrancesco, S.4 aut |
| 700 | 1 | a Cominsky, L. R.4 aut |
| 700 | 1 | a Conrad, J.4 aut |
| 700 | 1 | a Costamante, L.4 aut |
| 700 | 1 | a Davis, D. S.4 aut |
| 700 | 1 | a Dermer, C. D.4 aut |
| 700 | 1 | a de Angelis, A.4 aut |
| 700 | 1 | a de Palma, F.4 aut |
| 700 | 1 | a do Couto e Silva, E.4 aut |
| 700 | 1 | a Drell, P. S.4 aut |
| 700 | 1 | a Dubois, R.4 aut |
| 700 | 1 | a Dumora, D.4 aut |
| 700 | 1 | a Falcone, A.4 aut |
| 700 | 1 | a Farnier, C.4 aut |
| 700 | 1 | a Favuzzi, C.4 aut |
| 700 | 1 | a Fegan, S. J.4 aut |
| 700 | 1 | a Finke, J.4 aut |
| 700 | 1 | a Focke, W. B.4 aut |
| 700 | 1 | a Fortin, P.4 aut |
| 700 | 1 | a Frailis, M.4 aut |
| 700 | 1 | a Fukazawa, Y.4 aut |
| 700 | 1 | a Funk, S.4 aut |
| 700 | 1 | a Fusco, P.4 aut |
| 700 | 1 | a Gargano, F.4 aut |
| 700 | 1 | a Gasparrini, D.4 aut |
| 700 | 1 | a Gehrels, N.4 aut |
| 700 | 1 | a Georganopoulos, M.4 aut |
| 700 | 1 | a Germani, S.4 aut |
| 700 | 1 | a Giebels, B.4 aut |
| 700 | 1 | a Giglietto, N.4 aut |
| 700 | 1 | a Giommi, P.4 aut |
| 700 | 1 | a Giordano, F.4 aut |
| 700 | 1 | a Giroletti, M.4 aut |
| 700 | 1 | a Glanzman, T.4 aut |
| 700 | 1 | a Godfrey, G.4 aut |
| 700 | 1 | a Grandi, P.4 aut |
| 700 | 1 | a Grenier, I. A.4 aut |
| 700 | 1 | a Grondin, M. -H4 aut |
| 700 | 1 | a Grove, J. E.4 aut |
| 700 | 1 | a Guillemot, L.4 aut |
| 700 | 1 | a Guiriec, S.4 aut |
| 700 | 1 | a Hadasch, D.4 aut |
| 700 | 1 | a Harding, A. K.4 aut |
| 700 | 1 | a Hase, Hayo4 aut |
| 700 | 1 | a Hayashida, M.4 aut |
| 700 | 1 | a Hays, E.4 aut |
| 700 | 1 | a Horan, D.4 aut |
| 700 | 1 | a Hughes, R. E.4 aut |
| 700 | 1 | a Itoh, R.4 aut |
| 700 | 1 | a Jackson, Mirandau KTH,Partikel- och astropartikelfysik4 aut0 (Swepub:kth)u1k3ikhm |
| 700 | 1 | a Johannesson, G.4 aut |
| 700 | 1 | a Johnson, A. S.4 aut |
| 700 | 1 | a Johnson, T. J.4 aut |
| 700 | 1 | a Johnson, W. N.4 aut |
| 700 | 1 | a Kadler, M.4 aut |
| 700 | 1 | a Kamae, T.4 aut |
| 700 | 1 | a Katagiri, H.4 aut |
| 700 | 1 | a Kataoka, J.4 aut |
| 700 | 1 | a Kawai, N.4 aut |
| 700 | 1 | a Kishishita, T.4 aut |
| 700 | 1 | a Knoedlseder, J.4 aut |
| 700 | 1 | a Kuss, M.4 aut |
| 700 | 1 | a Lande, J.4 aut |
| 700 | 1 | a Latronico, L.4 aut |
| 700 | 1 | a Lee, S. -H4 aut |
| 700 | 1 | a Lemoine-Goumard, M.4 aut |
| 700 | 1 | a Garde, M. Llena4 aut |
| 700 | 1 | a Longo, F.4 aut |
| 700 | 1 | a Loparco, F.4 aut |
| 700 | 1 | a Lott, B.4 aut |
| 700 | 1 | a Lovellette, M. N.4 aut |
| 700 | 1 | a Lubrano, P.4 aut |
| 700 | 1 | a Makeev, A.4 aut |
| 700 | 1 | a Mazziotta, M. N.4 aut |
| 700 | 1 | a McConville, W.4 aut |
| 700 | 1 | a McEnery, J. E.4 aut |
| 700 | 1 | a Michelson, P. F.4 aut |
| 700 | 1 | a Mitthumsiri, W.4 aut |
| 700 | 1 | a Mizuno, T.4 aut |
| 700 | 1 | a Moiseev, A. A.4 aut |
| 700 | 1 | a Monte, C.4 aut |
| 700 | 1 | a Monzani, M. E.4 aut |
| 700 | 1 | a Morselli, A.4 aut |
| 700 | 1 | a Moskalenko, I. V.4 aut |
| 700 | 1 | a Murgia, S.4 aut |
| 700 | 1 | a Mueller, C.4 aut |
| 700 | 1 | a Nakamori, T.4 aut |
| 700 | 1 | a Naumann-Godo, M.4 aut |
| 700 | 1 | a Nolan, P. L.4 aut |
| 700 | 1 | a Norris, J. P.4 aut |
| 700 | 1 | a Nuss, E.4 aut |
| 700 | 1 | a Ohno, M.4 aut |
| 700 | 1 | a Ohsugi, T.4 aut |
| 700 | 1 | a Ojha, R.4 aut |
| 700 | 1 | a Okumura, A.4 aut |
| 700 | 1 | a Omodei, N.4 aut |
| 700 | 1 | a Orlando, E.4 aut |
| 700 | 1 | a Ormes, J. F.4 aut |
| 700 | 1 | a Ozaki, M.4 aut |
| 700 | 1 | a Pagani, C.4 aut |
| 700 | 1 | a Paneque, D.4 aut |
| 700 | 1 | a Panetta, J. H.4 aut |
| 700 | 1 | a Parent, D.4 aut |
| 700 | 1 | a Pelassa, V.4 aut |
| 700 | 1 | a Pepe, M.4 aut |
| 700 | 1 | a Pesce-Rollins, M.4 aut |
| 700 | 1 | a Piron, F.4 aut |
| 700 | 1 | a Plotz, C.4 aut |
| 700 | 1 | a Porter, T. A.4 aut |
| 700 | 1 | a Raino, S.4 aut |
| 700 | 1 | a Rando, R.4 aut |
| 700 | 1 | a Razzano, M.4 aut |
| 700 | 1 | a Razzaque, S.4 aut |
| 700 | 1 | a Reimer, A.4 aut |
| 700 | 1 | a Reimer, O.4 aut |
| 700 | 1 | a Reposeur, T.4 aut |
| 700 | 1 | a Ripken, J.4 aut |
| 700 | 1 | a Ritz, S.4 aut |
| 700 | 1 | a Rodriguez, A. Y.4 aut |
| 700 | 1 | a Roth, M.4 aut |
| 700 | 1 | a Ryde, Felixu KTH,Partikel- och astropartikelfysik4 aut0 (Swepub:kth)u1tlyg6w |
| 700 | 1 | a Sadrozinski, H. F. -W4 aut |
| 700 | 1 | a Sanchez, D.4 aut |
| 700 | 1 | a Sander, A.4 aut |
| 700 | 1 | a Scargle, J. D.4 aut |
| 700 | 1 | a Sgro, C.4 aut |
| 700 | 1 | a Siskind, E. J.4 aut |
| 700 | 1 | a Smith, P. D.4 aut |
| 700 | 1 | a Spandre, G.4 aut |
| 700 | 1 | a Spinelli, P.4 aut |
| 700 | 1 | a Starck, J. -L4 aut |
| 700 | 1 | a Stawarz, L.4 aut |
| 700 | 1 | a Strickman, M. S.4 aut |
| 700 | 1 | a Suson, D. J.4 aut |
| 700 | 1 | a Tajima, H.4 aut |
| 700 | 1 | a Takahashi, H.4 aut |
| 700 | 1 | a Takahashi, T.4 aut |
| 700 | 1 | a Tanaka, T.4 aut |
| 700 | 1 | a Thayer, J. B.4 aut |
| 700 | 1 | a Thayer, J. G.4 aut |
| 700 | 1 | a Thompson, D. J.4 aut |
| 700 | 1 | a Tibaldo, L.4 aut |
| 700 | 1 | a Torres, D. F.4 aut |
| 700 | 1 | a Tosti, G.4 aut |
| 700 | 1 | a Tramacere, A.4 aut |
| 700 | 1 | a Uchiyama, Y.4 aut |
| 700 | 1 | a Usher, T. L.4 aut |
| 700 | 1 | a Vandenbroucke, J.4 aut |
| 700 | 1 | a Vasileiou, V.4 aut |
| 700 | 1 | a Vilchez, N.4 aut |
| 700 | 1 | a Vitale, V.4 aut |
| 700 | 1 | a Waite, A. P.4 aut |
| 700 | 1 | a Wang, P.4 aut |
| 700 | 1 | a Winer, B. L.4 aut |
| 700 | 1 | a Wood, K. S.4 aut |
| 700 | 1 | a Yang, Z.4 aut |
| 700 | 1 | a Ylinen, Tomiu KTH,Partikel- och astropartikelfysik4 aut0 (Swepub:kth)u1vmovqg |
| 700 | 1 | a Ziegler, M.4 aut |
| 710 | 2 | a KTHb Partikel- och astropartikelfysik4 org |
| 773 | 0 | t Astrophysical Journalg 719:2, s. 1433-1444q 719:2<1433-1444x 0004-637Xx 1538-4357 |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-26900 |
| 856 | 4 8 | u https://doi.org/10.1088/0004-637X/719/2/1433 |
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- Abdo, A. A.
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