HESS J1640-465 - an exceptionally luminous TeV γ-ray supernova remnant
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F. Aharonian
- Function : Author
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K. Bernlöhr
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M. Böttcher
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C. Boisson
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F. Brun
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P. Brun
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T. Bulik
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S. Casanova
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M. Cerruti
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R. C. G. Chaves
- Function : Author
S. Colafrancesco
- Function : Author
G. Cologna
- Function : Author
J. Conrad
- Function : Author
P. Dewilt
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H. J. Dickinson
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G. Dubus
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K. Dutson
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M. Dyrda
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C. Farnier
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S. Fegan
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A. Fiasson
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G. Giavitto
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J. F. Glicenstein
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M.-H. Grondin
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M. Grudzińska
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G. Henri
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J. A. Hinton
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D. Horns
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M. Jamrozy
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F. Jankowsky
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I. Jung
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K. Katarzyński
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U. Katz
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S. Kaufmann
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B. Khélifi
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S. Klepser
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Nu. Komin
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K. Kosack
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J.-P. Lenain
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T. Lohse
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V. Marandon
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Alexandre Marcowith
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R. Marx
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N. Maxted
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P. J. Meintjes
- Function : Author
M. Meyer
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M. Mohamed
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Emmanuel Moulin
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T. Murach
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M. de Naurois
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J. Niemiec
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S. Ohm
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M. Ostrowski
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G. Pelletier
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P.-O. Petrucci
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B. Peyaud
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M. Punch
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A. Quirrenbach
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A. Reimer
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Matthieu Renaud
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F. Rieger
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L. Rob
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C. Romoli
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G. Rowell
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B. Rudak
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A. Santangelo
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F. Schüssler
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U. Schwanke
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S. Schwemmer
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Ł. Stawarz
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R. Steenkamp
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A. Szostek
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C. van Eldik
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B. van Soelen
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George Vasileiadis
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C. Venter
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J. Vink
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T. Vuillaume
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S. J. Wagner
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R. White
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A. Wierzcholska
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D. Wouters
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M. Zacharias
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A. Zech
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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.
Origin : Files produced by the author(s)