Observations of the Young Supernova Remnant RX J1713.7-3946 with the Fermi Large Area Telescope

Abdo, A.
Ackermann, M.
Ajello, M.
Allafort, A.
Baldini, L.
Ballet, J.
Barbiellini, G.
Baring, M.
Bastieri, D.
Bellazzini, R.
Berenji, B.
Blandford, R.
Bloom, E.
Bonamente, E.
Borgland, A.
Bouvier, A.
Brandt, T.
Bregeon, J.
Brigida, M.
Bruel, P.
Buehler, R.
Buson, S.
Caliandro, G.
Cameron, R.
Caraveo, P.
Casandjian, J.
Cecchi, C.
Chaty, S.
Chekhtman, A.
Cheung, C.
Chiang, J.
Cillis, A.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Corbel, S.
Cutini, S.
de Angelis, A.
de Palma, F.
Dermer, C.
Digel, S.
Do Couto e Silva, E.
Drell, P.
Drlica-Wagner, A.
Dubois, R.
Dumora, D.
Favuzzi, C.
Ferrara, E.
Fortin, P.
Frailis, M.
Fukazawa, Y.
Fukui, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giglietto, N.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Grenier, I.
Grondin, M.
Guiriec, S.
Hadasch, D.
Hanabata, Y.
Harding, A.
Hayashida, M.
Hayashi, K.
Hays, E.
Horan, D.
Jackson, M.
Johannesson, G.
Johnson, A.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kerr, M.
Knödlseder, J.
Kuss, M.
Lande, J.
Latronico, L.
Lee, S.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lovellette, M.
Lubrano, P.
Madejski, G.
Makeev, A.
Mazziotta, M.
McEnery, J.
Michelson, P.
Mignani, R.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A.
Monte, C.
Monzani, M.
Morselli, A.
Moskalenko, I.
Murgia, S.
Naumann-Godo, M.
Nolan, P.
Norris, J.
Nuss, E.
Ohsugi, T.
Okumura, A.
Orlando, E.
Ormes, J.
Paneque, D.
Parent, D.
Pelassa, V.
Pesce-Rollins, M.
Pierbattista, M.
Piron, F.
Pohl, M.
Porter, T.
Raino, S.
Rando, R.
Razzano, M.
Reimer, O.
Reposeur, T.
Ritz, S.
Romani, R.
Roth, M.
Sadrozinski, H.
Saz Parkinson, P.
Sgro, C.
Smith, D.
Smith, P.
Spandre, G.
Spinelli, P.
Strickman, M.
Tajima, H.
Takahashi, H.
Takahashi, T.
Tanaka, T.
Thayer, J.
Thayer, J.
Thompson, D.
Tibaldo, L.
Tibolla, Omar
Torres, D.
Tosti, G.
Tramacere, A.
Troja, E.
Uchiyama, Y.
Vandenbroucke, J.
Vasileiou, V.
Vianello, G.
Vilchez, N.
Vitale, V.
Waite, A.
Wang, P.
Winer, B.
Wood, K.
Yamamoto, H.
Yamazaki, R.
Yang, Z.
Ziegler, M.

Publication date

January 2011

Publisher

Institute of Physics Publishing

Abstract

We present observations of the young supernova remnant (SNR) RX J1713.7-3946 with the Fermi Large Area Telescope (LAT). We clearly detect a source positionally coincident with the SNR. The source is extended with a best-fit extension of 0fdg55 ± 0fdg04 matching the size of the non-thermal X-ray and TeV gamma-ray emission from the remnant. The positional coincidence and the matching extended emission allow us to identify the LAT source with SNR RX J1713.7-3946. The spectrum of the source can be described by a very hard power law with a photon index of Gamma = 1.5 ± 0.1 that coincides in normalization with the steeper H.E.S.S.-detected gamma-ray spectrum at higher energies. The broadband gamma-ray emission is consistent with a leptonic origin...