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; Berenji, B; Blandford, R D; Bloom, E D; Borgland, A W; Baldini, L; Bellazzini, R; Bregeon, J; Ballet, J; Barbiellini, G; Baring, M G; Bastieri, D; Bonamente, E; Bouvier, A; Brandt, T J; Brigida, M; Bruel, P

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

OBSERVATIONS OF THE YOUNG SUPERNOVA REMNANT RX J1713.7-3946 WITH THE FERMI LARGE AREA TELESCOPE

Journal Article · Fri Jun 10 04:00:00 EDT 2011 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/734/1/28· OSTI ID:21576658

Abdo, A A ^[1]; Ackermann, M; Ajello, M; Allafort, A; Berenji, B; Blandford, R D; Bloom, E D; Borgland, A W ^[2]; Baldini, L; Bellazzini, R; Bregeon, J ^[3]; Ballet, J ^[4]; Barbiellini, G ^[5]; Baring, M G ^[6]; Bastieri, D ^[7]; Bonamente, E ^[8]; Bouvier, A ^[9]; Brandt, T J ^[10]; Brigida, M ^[11]; Bruel, P ^[12]

Center for Earth Observing and Space Research, College of Science, George Mason University, Fairfax, VA 22030 (United States)
W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, CA 94305 (United States)
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, I-56127 Pisa (Italy)
Laboratoire AIM, CEA-IRFU/CNRS/Universite Paris Diderot, Service d'Astrophysique, CEA Saclay, 91191 Gif sur Yvette (France)
Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, I-34127 Trieste (Italy)
Department of Physics and Astronomy, Rice University, Houston, TX 77251 (United States)
Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova (Italy)
Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, I-06123 Perugia (Italy)
Santa Cruz Institute for Particle Physics, Department of Physics and Department of Astronomy and Astrophysics, University of California at Santa Cruz, Santa Cruz, CA 95064 (United States)
CNRS, IRAP, F-31028 Toulouse cedex 4 (France)
Dipartimento di Fisica 'M. Merlin' dell'Universita e del Politecnico di Bari, I-70126 Bari (Italy)
Laboratoire Leprince-Ringuet, Ecole polytechnique, CNRS/IN2P3, Palaiseau (France)

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 0.{sup 0}55 {+-} 0.{sup 0}04 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 as the dominant mechanism for the gamma-ray emission.

OSTI ID:: 21576658

Journal Information:: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 1 Vol. 734; ISSN ASJOAB; ISSN 0004-637X

Country of Publication:: United States

Language:: English

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