%0 Journal Article
%T Very high energy gamma rays from the composite SNR G0.9+0.1
%+ Physique Corpusculaire et Cosmologie - Collège de France (PCC)
%+ AstroParticule et Cosmologie (APC (UMR_7164))
%+ Laboratoire de Physique Théorique et Astroparticules (LPTA)
%+ Laboratoire Leprince-Ringuet (LLR)
%+ Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE)
%A Aharonian, F.
%A Akhperjanian, A.G.
%A Aye, K.-M.
%A Bazer-Bachi, A.R.
%A Beilicke, M.
%A Benbow, W.
%A Berge, D.
%A Berghaus, P.
%A Bernlohr, K.
%A Boisson, C.
%A Bolz, O.
%A Borgneier, C.
%A Bruan, I.
%A Breitling, F.
%A Brown, A.M.
%A Bussons Gordo, J.
%A Chadwick, P.M.
%A Chounet, L.-M.
%A Cornils, R.
%A Costamante, L.
%A Degrange, B.
%A Djannati-Ataï, A.
%A Drury, L.O'C.
%A Dubus, G.
%A Ergin, T.
%A Espigat, P.
%A Feinstein, F.
%A Fleury, P.
%A Fontaine, G.
%A Funk, S.
%A Gallant, Y.
%A Giebels, B.
%A Gillessen, S.
%A Goret, P.
%A Hadjichristidis, C.
%A Hauser, M.
%A Heinzelmann, G.
%A Henri, G.
%A Hermann, G.
%A Hofmann, W.
%A Holleran, M.
%A Horns, D.
%A de Jager, O.C.
%A Jung, I.
%A Khelifi, B.
%A Komin, Nu.
%A Konopelko, A.
%A Latham, I.J.
%A Le Gallou, R.
%A Lemière, A.
%A Lemoine, M.
%A Leroy, N.
%A Lohse, T.
%A Marcowith, A.
%A Masterson, C.
%A Mccomb, T.J.L.
%A de Naurois, M.
%A Nolan, S.J.
%A Noutsos, A.
%A Orford, K.J.
%A Osborne, J.L.
%A Ouchrif, M.
%A Panter, M.
%A Pelletier, G.
%A Pita, S.
%A Pohl, M.
%A Puhlhofer, G.
%A Punch, M.
%A Raubenheimer, B.C.
%A Raue, M.
%A Raux, J.
%A Rayner, S.M.
%A Redondo, I.
%A Reimer, A.
%A Reimer, O.
%A Ripken, J.
%A Rob, L.
%A Rolland, L.
%A Rowell, G.
%A Sahakian, V.
%A Sauge, L.
%A Schlenker, S.
%A Schlickeiser, R.
%A Schuster, C.
%A Schwanke, U.
%A Siewert, M.
%A Sol, H.
%A Steenkamp, R.
%A Stegmann, C.
%A Tavernet, J.-P.
%A Terrier, R.
%A Théoret, C.G.
%A Tluczykont, M.
%A Vasileiadis, G.
%A Venter, C.
%A Vincent, P.
%A Visser, B.
%A Volk, H.J.
%A Wagner, S.J.
%< avec comité de lecture
%Z APC-PCC 05-02
%@ 0004-6361
%J Astronomy and Astrophysics - A&A
%I EDP Sciences
%V 432
%P L25-L29
%8 2005
%D 2005
%Z astro-ph/0501265
%R 10.1051/0004-6361:200500022
%K ISM: supernova remnants
%K ISM: individual objects: G 0.9+0.1
%K gamma-rays: observations
%Z Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]
%Z Sciences of the Universe [physics]/Astrophysics [astro-ph]Journal articles
%X Very high energy (> 100 GeV) gamma-ray emission has been detected for the first time from the composite supernova remnant G0.9+0.1 using the H.E.S.S. instrument. The source is detected with a significance of 13 sigma, and a photon flux above 200 GeV of (5.7+/-0.7 stat +/- 1.2 sys) * 10^-12 cm^-2 s^-1, making it one of the weakest sources ever detected at TeV energies. The photon spectrum is compatible with a power law (dN/dE \propto E^-Gamma) with photon index Gamma = 2.40 +/- 0.11 stat +/- 0.20 sys. The gamma-ray emission appears to originate in the plerionic core of the remnant, rather than the shell, and can be plausibly explained as inverse Compton scattering of relativistic electrons.
%G English
%Z HESS
%L in2p3-00023664
%U https://hal.in2p3.fr/in2p3-00023664
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%~ LLR
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%~ PCC
%~ APC
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%~ UNIV-MONTP2
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%~ X-DEP-PHYS
%~ DSM-IRFU
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%~ LPNHE-2