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Title: Primary particle acceleration above 100 TeV in the shell-type supernova remnant RX J1713.7-3946 with deep HESS observations
Authors: Berge, D.
Hinton, J. A.
Konopelko, A.
Reimer, O.
Rowell, G.
Aharonian, F.
Benbow, W.
Berge, D.
Bernlöhr, K.
Bolz, O.
Braun, I.
Djannati-Ataï, A.
Espigat, P.
Lemière, A.
Maurin, G.
Pita, S.
Ferrero, E.
Punch, M.
Hauser, M.
Hinton, J. A.
Pühlhofer, G.
Rob, L.
Schwemmer, S.
Shalchi, A.
Tam, P. H.
Masterson, C.
Wagner, S. J.
Bühler, R.
Feinstein, F.
Fiasson, A.
Gallant, Y. A.
Jacholkowska, A.
Reimer, A.
Komin, N.
Moulin, E.
Spanier, F.
Vasileiadis, G.
Glück, B.
Tluczykont, M.
Stegmann, C.
Henri, G.
Carrigan, S.
Pelletier, G.
Schlickeiser, R.
Saugé, L.
Hoffmann, A.
Horns, D.
Steenkamp, R.
Kendziorra, E.
Santangelo, A.
Schwarzburg, S.
Costamante, L.
Martineau-Huynh, O.
De Naurois M
Schröder, R.
Tavernet, J. -. P.
Costamante, L.
Vincent, P.
Nedbal, D.
Costamante, L.
Masterson, C.
Egberts, K.
Tluczykont, M.
Funk, S.
Hauser, D.
Hermann, G.
Schwanke, U.
Hinton, J. A.
Brion, E.
Hofmann, W.
Chadwick, P. M.
Hoppe, S.
Khélifi, B.
Kosack, K.
Masterson, C.
Panter, M.
Rowell, G.
Boisson, C.
Van Eldik C
Völk, H. J.
Glicenstein, J. F.
Akhperjanian, A. G.
Sahakian, V.
Dickinson, H. J.
Bazer-Bachi, A. R.
Borrel, V.
Marcowith, A.
Olive, J. -. P.
Martin, J. M.
Beilicke, M.
Cornils, R.
Heinzelmann, G.
Goret, P.
Raue, M.
Ripken, J.
Bernlöhr, K.
Hadjichristidis, C.
Funk, S.
Füßling, M.
Sol, H.
Kerschhaggl, M.
Konopelko, A.
Lohse, T.
Schlenker, S.
Rolland, L.
Latham, I. J.
Brown, A. M.
Le Gallou R
McComb, T. J. L.
Nolan, S. J.
Noutsos, A.
Pita, S.
Orford, K. J.
Espigat, P.
Osborne, J. L.
Terrier, R.
Rayner, S. M.
Spangler, D.
Ward, M.
Büsching, I.
Holleran, M.
De Jager OC
Punch, M.
Raubenheimer, B. C.
Venter, C.
Lemière, A.
Chounet, L. -. M.
Degrange, B.
Drury, L. O.
Dubus, G.
Fontaine, G.
Giebels, B.
Khélifi, B.
Terrier, R.
Lemoine-Goumard, M.
Superina, G.
Tluczykont, M.
Maurin, G.
Coignet, G.
Lamanna, G.
Ranchon, S.
Emmanoulopoulos, D.
Rosier-Lees, S.
Vialle, J. P.
Djannati-Ataï, A.
First Published: Mar-2007
Publisher: EDP Sciences for European Southern Observatory (ESO)
Citation: Astronomy & Astrophysics, 2007, 464 (1), pp. 235-243
Abstract: Aims.We present deep HESS observations of the supernova remnant (SNR) RX J1713.7-3946 . Combining data of three years - from 2003 to 2005 - we obtain significantly increased statistics and energy coverage as compared to earlier 2003 and 2004 results. Methods.The data are analysed separately for the different years. Results.Very good agreement of the gamma-ray morphology and the differential spectra is found when comparing the three years. The combined gamma-ray image of the 2004 and 2005 data reveals the morphology of RX J1713.7-3946 with unprecedented precision. An angular resolution of $0.06\degr$ is achieved, revealing the detailed structure of the remnant. The combined spectrum of all three years extends over three orders of magnitude, with significant gamma-ray emission approaching 100 TeV. The cumulative significance above 30 TeV is $4.8\sigma$, while for energies between 113 and 294 TeV an upper limit on the gamma-ray flux of $1.6\times 10^{-16}~\mathrm{cm}^{-2}~\mathrm{s}^{-1}$ is obtained. Conclusions.The energy coverage of the HESS data is presumably at the limit of present generation Cherenkov telescopes. The measurement of significant gamma-ray emission beyond 30 TeV formally implies the existence of primary particles of at least that energy. However, for realistic scenarios of very-high-energy gamma-ray production, the Inverse Compton scattering of very-high-energy electrons and $\pi^0$ decay following inelastic proton-proton interactions, the measured gamma-ray energies imply that efficient acceleration of primary particles to energies exceeding 100 TeV is taking place in the shell of the SNR RX J1713.7-3946 .
DOI Link: 10.1051/0004-6361:20066381
ISSN: 0004-6361
eISSN: 1432-0746
Version: Publisher Version
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © 2007 ESO. Reproduced with permission from Astronomy & Astrophysics, © ESO.
Description: This article has an erratum:
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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