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HESS J1640-465 - an exceptionally luminous TeV γ-ray supernova remnant

A. Abramowski 1 F. Aharonian 2, 3 F. Ait Benkhali 2 A. G. Akhperjanian 4 E. Angüner 5 G. Anton 6 S. Balenderan 7 Agnès Balzer 8 A. Barnacka 9 Y. Becherini 10 J. Becker Tjus 11 K. Bernlöhr 2, 5 E. Birsin 5 E. Bissaldi 12 J. Biteau 13 M. Böttcher 14 C. Boisson 15 J. Bolmont 16 P. Bordas 17 J. Brucker 6 F. Brun 2 P. Brun 18 T. Bulik S. Carrigan 2 S. Casanova 2 M. Cerruti 15 P. M. Chadwick 7 R. Chalme-Calvet 16 R. C. G. Chaves A. Cheesebrough 7 M. Chrétien 16 S. Colafrancesco G. Cologna J. Conrad C. Couturier 16 Y. Cui 17 M. Dalton 19 M. K. Daniel 7 I. D. Davids 14 B. Degrange 13 C. Deil 2 P. Dewilt H. J. Dickinson A. Djannati-Ataï 20 W. Domainko 2 L. O'C. Drury 21 G. Dubus K. Dutson J. Dyks 9 M. Dyrda T. Edwards 2 K. Egberts 12 P. Eger 2 P. Espigat 22 C. Farnier S. Fegan 13 F. Feinstein 23 M. V. Fernandes 1 D. Fernandez 23 A. Fiasson 24 G. Fontaine 13 A. Förster 2 M. Füßling 25 M. Gajdus 8 Y. A. Gallant 23 T. Garrigoux 16 G. Giavitto 8 B. Giebels 13 J. F. Glicenstein M.-H. Grondin 2 M. Grudzińska S. Häffner 6 J. Hahn 2 J. Harris 7 G. Heinzelmann 1 G. Henri G. Hermann 2 O. Hervet 15 A. Hillert 2 J. A. Hinton W. Hofmann 2 P. Hofverberg 2 M. Holler 25 D. Horns 1 A. Jacholkowska 16 C. Jahn 6 M. Jamrozy M. Janiak 9 F. Jankowsky I. Jung 6 M. A. Kastendieck 1 K. Katarzyński U. Katz 6 S. Kaufmann B. Khélifi 20 Michel Kieffer 16 S. Klepser 8 D. Klochkov 17 W. Kluźniak 9 T. Kneiske 1 D. Kolitzus 12 Nu. Komin 24 K. Kosack S. Krakau 11 F. Krayzel 24 P. P. Krüger 2 H. Laffon 19 G. Lamanna 24 J. Lefaucheur 22 A. Lemière 22 M. Lemoine-Goumard 19 J.-P. Lenain 16 D. Lennarz 2 T. Lohse 5 A. Lopatin 6 C.-C. Lu 2 V. Marandon 2 A. Marcowith 23 R. Marx 2 G. Maurin 24 N. Maxted M. Mayer 25 T. J. L. Mccomb 26 J. Méhault 19 P. J. Meintjes U. Menzler 11 M. Meyer R. Moderski 9 M. Mohamed Emmanuel Moulin T. Murach 5 C. L. Naumann 16 M. de Naurois 13 J. Niemiec S. J. Nolan 26 L. Oakes 5 S. Ohm E. de Oña Wilhelmi 2 B. Opitz 1 M. Ostrowski I. Oya 5 M. Panter 2 R. D. Parsons 2 M. Paz Arribas 5 N. W. Pekeur 14 G. Pelletier J. Perez 12 P.-O. Petrucci B. Peyaud S. Pita 22 H. Poon 2 G. Pühlhofer 17 M. Punch 22 A. Quirrenbach S. Raab 6 M. Raue 1 A. Reimer 12 O. Reimer 12 M. Renaud 23 R. de los Reyes 2 F. Rieger 2 L. Rob C. Romoli 21 S. Rosier-Lees 24 G. Rowell B. Rudak 9 C. B. Rulten 15 V. Sahakian 4 D. A. Sanchez 24 A. Santangelo 17 R. Schlickeiser 11 F. Schüssler A. Schulz 8 U. Schwanke 5 S. Schwarzburg 17 S. Schwemmer H. Sol 15 G. Spengler 5 F. Spies 1 Ł. Stawarz R. Steenkamp C. Stegmann 25 F. Stinzing 6 K. Stycz 8 I. Sushch 5 A. Szostek J.-P. Tavernet 16 T. Tavernier 22 A. M. Taylor 21 R. Terrier 22 M. Tluczykont 1 C. Trichard 24 K. Valerius 6 C. van Eldik 6 B. van Soelen G. Vasileiadis 23 C. Venter 14 A. Viana 2 P. Vincent 16 J. Vink H. J. Völk 2 F. Volpe 2 M. Vorster 14 T. Vuillaume S. J. Wagner P. Wagner 5 M. Ward 26 M. Weidinger 11 Q. Weitzel 2 R. White A. Wierzcholska P. Willmann 6 A. Wörnlein 6 D. Wouters V. Zabalza 2 M. Zacharias 11 A. Zajczyk 9 A. A. Zdziarski 9 A. Zech 15 H.-S. Zechlin 1
Abstract : The results of follow-up observations of the TeV gamma-ray source HESSJ 1640-465 from 2004 to 2011 with the High Energy Stereoscopic System (H.E.S.S.) are reported in this work. The spectrum is well described by an exponential cut-off power law with photon index Gamma=2.11 +/- 0.09_stat +/- 0.10_sys, and a cut-off energy of E_c = (6.0 +2.0 -1.2) TeV. The TeV emission is significantly extended and overlaps with the north-western part of the shell of the SNR G338.3-0.0. The new H.E.S.S. results, a re-analysis of archival XMM-Newton data, and multi-wavelength observations suggest that a significant part of the gamma-ray emission from HESS J1640-465 originates in the SNR shell. In a hadronic scenario, as suggested by the smooth connection of the GeV and TeV spectra, the product of total proton energy and mean target density could be as high as W_p n_H ~ 4 x 10^52 (d/10kpc)^2 erg cm^-3.
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A. Abramowski, F. Aharonian, F. Ait Benkhali, A. G. Akhperjanian, E. Angüner, et al.. HESS J1640-465 - an exceptionally luminous TeV γ-ray supernova remnant. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2014, 439, pp.2828-2836. ⟨10.1093/mnras/stu139⟩. ⟨in2p3-00947889⟩

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