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

ID: 236923.0, MPI für Kernphysik / High-Energy Astrophysics
Upper limits to the SN1006 multi-TeV gamma-ray flux from H.E.S.S. observations
Authors:Aharonian, F.; Akhperjanian, A. G.; Aye, K.-M.; Bazer-Bachi, A. R.; Beilicke, M.; Benbow, W.; Berge, D.; Berghaus, P.; Bernlöhr, K.; Bolz, O.; Boisson, C:; Borgmeier, C.; Breitling, F.; Brown, A. M.; Bussons Gordo, J.; Chadwick, P. M.; Chounet, L.-M.; Cornils, R.; Costamante, L.; Degrange, B.; Djannati-Atai, A.; Drury, L.O'C.; Ergin, T.; Espigat, P.; Feinstein, F.; Fleury, P.; Fontaine, G.; Funk, S.; Gallant, Y. A.; Giebels, B.; Gillessen, S.; Goret, P.; Dubus, G.; Hadjichristidis, C.; Hauser, M.; Heinzelmann, G.; Henri, G.; Hermann, G.; Hinton, J. A.; Hofmann, W.; Holleran, M.; Horns, D.; de Jager, O. C.; Jung, I.; Khélifi, B.; Komin, N.; Konopelko, A.; Latham, I. J.; Le Gallou, R.; Lemoine, M.; Lemière, A.; Leroy, N.; Lohse, T.; Marcowith, A.; Masterson, C.; McComb, T. J. L.; de Naurois, M.; Nolan, S. J.; Noutsos, A.; Orford, K. J.; Osborne, J. L.; Ouchrif, M.; Panter, M.; Pelletier, G.; Pita, S.; Fuchs, Y.; Pühlhofer, G.; Punch, M.; Raubenheimer, B. C.; Raue, M.; Raux, J.; Rayner, S. M.; Redondo, I.; Reimer, A.; Reimer, O.; Ripken, J.; van der Walt, D.J.; Rob, L.; Rolland, L.; Rowell, G.; Sahakian, V.; Saugé, L.; Schlenker, S.; Schlickeiser, R.; Schuster, C.; Schwanke, U.; Siewert, M.; Sol, H.; Steenkamp, R.; Stegmann, C.; Tavernet, J.-P.; Théoret, C. G.; Tluczykont, M.; Venter, C.; Vasileiadis, G.; Vincent, P.; Visser, B.; Völk, H. J.; Wagner, S. J.
Research Context:H.E.S.S.
Date of Publication (YYYY-MM-DD):2005-07-01
Title of Journal:Astronomy & Astrophysics
Journal Abbrev.:A&A
Issue / Number:1
Start Page:135
End Page:139
Copyright:© ESO 2005
Review Status:not specified
Audience:Experts Only
Abstract / Description:Observations of the shell-type supernova remnant SN1006 have been carried out with the HESS system of Cherenkov telescopes during 2003 (18.2 h with two operating telescopes) and 2004 (6.3 h with all four telescopes). No evidence for TeV gamma-ray emission from any compact or extended region associated with the remnant is seen and resulting upper limits at the 99.9% confidence level are up to a factor 10 lower than previously-published fluxes from CANGAROO. For SN1006 at its current epoch of evolution we define limits for a number of important global parameters. Upper limits on the gamma-ray luminosity (for E = 0.26 to 10 TeV, distance d = 2 kpc) of Lγ < 1.7 x 1033 erg s-1, and the total energy in corresponding accelerated protons, Wp < 1.6 x 1050 erg are estimated (for proton energies Ep 1.5 to 60 TeV and assuming the lowest value n = 0.05 cm-3 of the ambient target density discussed in literature). Extending this estimate to cover the range of proton energies observed in the cosmic ray spectrum up to the knee (we take here Ep 1 GeV to 3 PeV, assuming a differential particle index -2) gives Wp < 6.3 x 1050 erg. A lower limit on the post-shock magnetic field of B > 25μG results when considering the synchrotron/inverse-Compton framework for the observed X-ray flux and γ -ray upper limits.
Free Keywords:gamma rays: observations -- ISM: supernova remnants
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group of H. J. Völk/High Energy Astrophysics (F. Aharonian)
MPI für Kernphysik/Group of W. Hofmann/Experimental High-Energy Astrophysics (M. Panter, G. Hermann)
External Affiliations:Yerevan Physics Institute, Armenia
University of Durham, Department of Physics, UK
Centre d'Etudes Spatiales des Rayonnements, CNRS/UPS Toulouse, France
Universität Hamburg, Institut für Experimentalphysik, Germany
Physique Corpusculaire et Cosmologie, IN2P3/CNRS, Collège de France, Paris, France
Institut für Physik, Humboldt-Universität zu Berlin, Germany
LUTH, UMR 8102 du CNRS, Observatoire de Paris, Section de Meudon, France
Groupe d'astroparticules de Montpellier, IN2P3/CNRS, Université Montpellier II, France
Laboratoire de Physique Nucléaire et de Hautes Energies, IN2P3/CNRS, Universités Paris VI & VII, Jussieu, France
European Associated Laboratory for Gamma-Ray Astronomy, jointly supported by CNRS and MPG
Laboratoire Leprince-Ringuet, IN2P3/CNRS, Ecole Polytechnique, Palaiseau, France
Dublin Institute for Advanced Studies, Ireland
Service d'Astrophysique. DAPNIA/DSM/CEA, CE Saclay, Gif-sur-Yvette, France
Landessternwarte, Königstuhl, Heidelberg, Germany
Laboratoire d'Astrophysique de Grenoble, INSU/CNRS, Université Joseph Fourier, France
Unit for Space Physics, North-West University, Potchefstroom, South Africa
Institut für theoretische Physik, Lehrstuhl IV, Ruhr-Universität Bochum, Germany
Institute of Particle and Nuclear Physics, Charles University, Prague, Czech Republic
University of Namibia, Windhoek, Namibia
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