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https://hdl.handle.net/2440/82911
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Type: | Journal article |
Title: | HESS J1640-465 - an exceptionally luminous TeV γ-ray supernova remnant |
Other Titles: | HESS J1640-465 - an exceptionally luminous TeV gamma-ray supernova remnant |
Author: | Abramowski, A. de Wilt, P. Dickinson, H. Maxted, N. Mayer, M. Rowell, G. |
Citation: | Monthly Notices of the Royal Astronomical Society, 2014; 439(3):2828-2836 |
Publisher: | Oxford University Press |
Issue Date: | 2014 |
ISSN: | 1365-2966 1365-2966 |
Organisation: | Institute for Photonics & Advanced Sensing (IPAS) |
Statement of Responsibility: | H.E.S.S. Collaboration, A. Abramowski...P. Dewilt...N. I. Maxted...G. Rowell...et al. |
Abstract: | The results of follow-up observations of the TeV γ-ray source HESS J1640−465 from 2004 to 2011 with the High Energy Stereoscopic System (HESS) are reported in this work. The spectrum is well described by an exponential cut-off power law with photon index Γ = 2.11 ± 0.09stat ± 0.10sys, and a cut-off energy of Ec=6.0+2.0−1.2 TeV. The TeV emission is significantly extended and overlaps with the northwestern part of the shell of the SNR G338.3−0.0. The new HESS results, a re-analysis of archival XMM–Newton data and multiwavelength observations suggest that a significant part of the γ-ray emission from HESS J1640−465 originates in the supernova remnant 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 WpnH ∼ 4 × 1052(d/10kpc)2 erg cm−3. |
Keywords: | Radiation mechanisms: non-thermal ISM: individual objects: G338.3−0.0 ISM: supernova remnants |
Description: | Corrected by Erratum in Monthly Notices of the Royal Astronomical Society, 2014; 441(4):3640-3642 (DOI: 10.1093/mnras/stu826) |
Rights: | © 2014 The Authors |
DOI: | 10.1093/mnras/stu139 |
Published version: | http://dx.doi.org/10.1093/mnras/stu139 |
Appears in Collections: | Aurora harvest 4 IPAS publications |
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