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          Institute: MPI für Kernphysik     Collection: High-Energy Astrophysics     Display Documents



  history
ID: 281839.0, MPI für Kernphysik / High-Energy Astrophysics
H.E.S.S. observations of the shell-type SNR RX J1713.7-3946
Authors:Berge, David; Lemoine-Goumard, M.; de Naurois, M.
Language:English
Corporate body:D. Berge et al. for the H.E.S.S. Collaboration
Research Context:Gamma Ray Astronomy
Publisher:Tata Institute of Fundamental Research
Place of Publication:Navy Nagar, Colaba, Mumbai, MH-400005
Date of Publication (YYYY-MM-DD):2005-12
Title of Proceedings:Proceedings of the 29th International Cosmic Ray Conference
Start Page:117
End Page:120
Volume (in Series):10,4
Name of Conference/Meeting:29th International Cosmic Ray Conference
Place of Conference/Meeting:Pune, India
(Start) Date of Conference/Meeting
 (YYYY-MM-DD):
2005-08-03
End Date of Conference/Meeting 
 (YYYY-MM-DD):
2005-08-10
Review Status:not specified
Audience:Experts Only
Abstract / Description:The shell-type supernova remnant (SNR) RX J1713.7-3946 (G347.3 - 0.5) was first discovered with ROSAT in X-rays [1] and later also observed to emit TeV γ-rays [2, 3]. This object, together with several other southern-hemisphere SNRs, is a prime target for observations with the High Energy Stereoscopic System(H.E.S.S.), a new system of imaging atmospheric Cherenkov telescopes which was completed at the end of 2003 in Namibia and is now in full operation [4, 5]. We present first results from deep observations of the SNR RX J1713.7-3946 conducted with the complete H.E.S.S. array in 2004. Almost all parts of the SNR emit gamma rays; the emission is found to resemble a shell structure with increased fluxes from the western and north-western part. The differential gamma-ray spectrum of the whole SNR extends over more than two orders of magnitude and appears rather hard with a power-law photon index of Γ = 2.27 ± 0.02 stat ± 0.20 (sys).The characteristics of the energy spectrum imply efficient acceleration of charged particles to energies well
beyond 100 TeV, consistent with current ideas of particle acceleration in young SNR shocks.
Free Keywords:Hess
External Publication Status:published
Document Type:Conference-Paper
Affiliations:MPI für Kernphysik/Group H. J. Völk/High Energy Astrophysics (F. Aharonian)
MPI für Kernphysik/Group W. Hofmann/Experimental High-Energy Astrophysics (M. Panter, G. Hermann)
External Affiliations:Yerevan Physics Institute, 2 Alikhanian Brothers Street, 375036 Yerevan, Armenia.
Department of Physics, University of Durham, South Road, Durham DH1 3LE, UK.
Centre d'Etude Spatiale des Rayonnements, CNRS/UPS, 9 av. du Colonel Roche, BP 4346, F-31029 Toulouse Cedex 4, France.
Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, D-22761 Hamburg, Germany.
APC, UMR 7164 du CNRS, 11 Place Marcelin Berthelot, F-75231 Paris Cedex 05, France.
Institut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, D-12489 Berlin, Germany.
Laboratoire Univers et Théories (LUTH), UMR 8102 du CNRS, Observatoire de Paris, Section de Meudon, F-92195 Meudon Cedex, France.
Laboratoire de Physique Théorique et Astroparticules, IN2P3/CNRS, Université Montpellier II, CC 70, Place Eugène Bataillon, F-34095 Montpellier Cedex 5, France.
Laboratoire Leprince-Ringuet, IN2P3/CNRS, Ecole Polytechnique, F-91128 Palaiseau, France.
Dublin Institute for Advanced Studies, 5 Merrion Square, Dublin 2, Ireland.
Landessternwarte, Königstuhl, D-69117 Heidelberg, Germany.
Laboratoire d'Astrophysique de Grenoble, INSU/CNRS, Université Joseph Fourier, BP 53, F-38041 Grenoble Cedex 9, France.
DAPNIA/DSM/CEA, CE Saclay, F-91191 Gif-sur-Yvette, France.
Unit for Space Physics, North-West University, Potchefstroom 2520, South Africa.
Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Universités Paris VI & VII, 4 Place Jussieu, F-75252 Paris Cedex 05, France.
Institut für Theoretische Physik, Lehrstuhl IV: Weltraum und Astrophysik, Ruhr-Universität Bochum, D-44780 Bochum, Germany.
Institute of Particle and Nuclear Physics (IPNP), Charles University, V Holesovickach 2, 180 00 Prague 8, Czech Republic.
University of Namibia, Private Bag 13301, Windhoek, Namibia.
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