Observations of the young supernova remnant RX J1713.7-3946 with the Fermi Large Area Telescope

Abdo, Aa; Ackermann, M; Ajello, M; Allafort, A; Baldini, L; Ballet, J; Barbiellini, G; Baring, Mg; Bastieri, D; Bellazzini, R; Berenji, B; Blandford, Rd; Bloom, Ed; Bonamente, E; Borgland, Aw; Bouvier, A; Brandt, Tj; Bregeon, J; Brigida, M; Bruel, P; Buehler, R; Buson, S; Caliandro, Ga; Cameron, Ra; Caraveo, Pa; Casandjian, Jm; Cecchi, C; Chaty, S; Chekhtman, A; Cheung, Cc; Chiang, J; Cillis, An; Ciprini, S; Claus, R; Cohen Tanugi, J; Conrad, J; Corbel, S; Cutini, S; De Angelis, A; De Palma, F; Dermer, Cd; Digel, Sw; Ede, Silva; Drell, Ps; Drlica Wagner, A; Dubois, R; Dumora, D; Favuzzi, Cecilia; Ferrara, Ec; Fortin, P; Frailis, M; Fukazawa, Y; Fukui, Y; Funk, S; Fusco, P; Gargano, F; Gasparrini, D; Gehrels, N; Germani, S; Giglietto, Nicola; Giordano, F; Giroletti, M; Glanzman, T; Godfrey, G; Grenier, Ia; Grondin, Mh; Guiriec, S; Hadasch, D; Hanabata, Y; Harding, Ak; Hayashida, M; Hayashi, K; Hays, E; Horan, D; Jackson, Ms; Johannesson, G; Johnson, As; Kamae, T; Katagiri, H; Kataoka, J; Kerr, M; Knodlseder, J; Kuss, M; Lande, J; Latronico, L; Lee, Sh; Lemoine Goumard, M; Longo, F; Loparco, F; Lovellette, Mn; Lubrano, P; Madejski, Gm; Makeev, A; Mazziotta, Mn; Mcenery, Je; Michelson, Pf; Mignani, Rp; Mitthumsiri, W; Mizuno, T; Moiseev, Aa; Monte, C; Monzani, Me; Morselli, A; Moskalenko, Iv; Murgia, S; Naumann Godo, M; Nolan, Pl; Norris, Jp; Nuss, E; Ohsugi, T; Okumura, A; Orlando, E; Ormes, Jf; Paneque, D; Parent, D; Pelassa, V; Pesce Rollins, M; Pierbattista, M; Piron, F; Pohl, M; Porter, Ta; Raino, S; Rando, R; Razzano, M; Reimer, O; Reposeur, T; Ritz, S; Romani, Rw; Roth, M; Hfw, Sadrozinski; Pms, Parkinson; Sgro, C; Smith, Da; Smith, Pd; Spandre, G; Spinelli, P; Strickman, Ms; Tajima, H; Takahashi, H; Takahashi, T; Tanaka, T; Thayer, Jg; Thayer, Jb; Thompson, Dj; Tibaldo, L; Tibolla, O; Torres, Df; Tosti, G; Tramacere, A; Troja, E; Uchiyama, Y; Vandenbroucke, J; Vasileiou, V; Vianello, G; Vilchez, N; Vitale, V; Waite, Ap; Wang, P; Winer, Bl; Wood, Ks; Yamamoto, H; Yamazaki, R; Yang, Z; Ziegler, M.

doi:10.1088/0004-637X/734/1/28

We present observations of the young supernova remnant (SNR) RXJ1713.7-3946 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 055 ± 004 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 RXJ1713.7-3946. The spectrum of the source can be described by a very hard power law with a photon index of Γ = 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 as the dominant mechanism for the gamma-ray emission.

Observations of the young supernova remnant RX J1713.7-3946 with the Fermi Large Area Telescope / Abdo, A.a., Ackermann, M., Ajello, M., Allafort, A., Baldini, L., Ballet, J., Barbiellini, G., Baring, M.g., Bastieri, D., Bellazzini, R., Berenji, B., Blandford, R.d., Bloom, E.d., Bonamente, E., Borgland, A.w., Bouvier, A., Brandt, T.j., Bregeon, J., Brigida, M., Bruel, P., et al.. - In: THE ASTROPHYSICAL JOURNAL. - ISSN 0004-637X. - 734:1(2011). [10.1088/0004-637X/734/1/28]