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HESS J1818-154, a new composite supernova remnant discovered in TeV gamma rays and X-rays

Composite supernova remnants (SNRs) constitute a small subclass of remnants of massive stellar explosions where non-thermal radiation is observed from both the expanding shell-like shock front and from a pulsar wind nebula (PWN) located inside of the SNR. These systems represent a unique evolutionar... Full description

Journal Title: Astronomy and Astrophysics - A&A 2014, Vol.562, p.A40
Main Author: Abramowski, A
Other Authors: Aharonian, F , Benkhali, F. Ait , Akhperjanian, A. G , Angüner, E , Anton, G , Balenderan, S , Balzer, A , Barnacka, A , Becherini, Y , Tjus, J. Becker , Bernlöhr, K , Birsin, E , Bissaldi, E , Biteau, J , Böttcher, M , Boisson, C
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0004-6361 ; E-ISSN: 1432-0746 ; DOI: 10.1051/0004-6361/201322914
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recordid: hal_soai_HAL_in2p3_00907620v1
title: HESS J1818-154, a new composite supernova remnant discovered in TeV gamma rays and X-rays
format: Article
creator:
  • Abramowski, A
  • Aharonian, F
  • Benkhali, F. Ait
  • Akhperjanian, A. G
  • Angüner, E
  • Anton, G
  • Balenderan, S
  • Balzer, A
  • Barnacka, A
  • Becherini, Y
  • Tjus, J. Becker
  • Bernlöhr, K
  • Birsin, E
  • Bissaldi, E
  • Biteau, J
  • Böttcher, M
  • Boisson, C
subjects:
  • Physics
  • Astrophysics
  • High Energy Astrophysical Phenomena
  • Sciences of the Universe
  • Astrophysics
  • High Energy Astrophysical Phenomena
  • Physics
  • Physics
  • Astrophysics
  • Astronomy & Astrophysics
  • Physics
ispartof: Astronomy and Astrophysics - A&A, 2014, Vol.562, p.A40
description: Composite supernova remnants (SNRs) constitute a small subclass of remnants of massive stellar explosions where non-thermal radiation is observed from both the expanding shell-like shock front and from a pulsar wind nebula (PWN) located inside of the SNR. These systems represent a unique evolutionary phase of SNRs where observations in the radio, X-ray and gamma-ray regimes allow the study of the co-evolution of both of these energetic phenomena. In this article, we report results from observations of the shell-type SNR G15.4+0.1 performed with the High Energy Stereoscopic System (H.E.S.S.) and XMM-Newton. A compact TeV gamma-ray source, HESSJ1818-154, located in the center and contained within the shell of G15.4+0.1 is detected by H.E.S.S. featuring a spectrum best represented by a power-law model with a spectral index of $-2.3 \pm 0.3_{stat} \pm 0.2_{sys}$ and an integral flux of F$(0.42\,\mathrm{TeV}$)=($0.9 \pm 0.3_{\mathrm{stat}} \pm 0.2_{\mathrm{sys}}) \times 10^{-12}$...
language: eng
source:
identifier: ISSN: 0004-6361 ; E-ISSN: 1432-0746 ; DOI: 10.1051/0004-6361/201322914
fulltext: no_fulltext
issn:
  • 0004-6361
  • 00046361
  • 1432-0746
  • 14320746
url: Link


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titleHESS J1818-154, a new composite supernova remnant discovered in TeV gamma rays and X-rays
creatorAbramowski, A ; Aharonian, F ; Benkhali, F. Ait ; Akhperjanian, A. G ; Angüner, E ; Anton, G ; Balenderan, S ; Balzer, A ; Barnacka, A ; Becherini, Y ; Tjus, J. Becker ; Bernlöhr, K ; Birsin, E ; Bissaldi, E ; Biteau, J ; Böttcher, M ; Boisson, C
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subjectPhysics ; Astrophysics ; High Energy Astrophysical Phenomena ; Sciences of the Universe ; Astrophysics ; High Energy Astrophysical Phenomena ; Physics ; Physics ; Astrophysics ; Astronomy & Astrophysics ; Physics
descriptionComposite supernova remnants (SNRs) constitute a small subclass of remnants of massive stellar explosions where non-thermal radiation is observed from both the expanding shell-like shock front and from a pulsar wind nebula (PWN) located inside of the SNR. These systems represent a unique evolutionary phase of SNRs where observations in the radio, X-ray and gamma-ray regimes allow the study of the co-evolution of both of these energetic phenomena. In this article, we report results from observations of the shell-type SNR G15.4+0.1 performed with the High Energy Stereoscopic System (H.E.S.S.) and XMM-Newton. A compact TeV gamma-ray source, HESSJ1818-154, located in the center and contained within the shell of G15.4+0.1 is detected by H.E.S.S. featuring a spectrum best represented by a power-law model with a spectral index of $-2.3 \pm 0.3_{stat} \pm 0.2_{sys}$ and an integral flux of F$(0.42\,\mathrm{TeV}$)=($0.9 \pm 0.3_{\mathrm{stat}} \pm 0.2_{\mathrm{sys}}) \times 10^{-12}$...
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titleHESS J1818-154, a new composite supernova remnant discovered in TeV gamma rays and X-rays
description

Composite supernova remnants (SNRs) constitute a small subclass of remnants of massive stellar explosions where non-thermal radiation is observed from both the expanding shell-like shock front and from a pulsar wind nebula (PWN) located inside of the SNR. These systems represent a unique evolutionary phase of SNRs where observations in the radio, X-ray and gamma-ray regimes allow the study of the co-evolution of both of these energetic phenomena. In this article, we report results from observations of the shell-type SNR G15.4+0.1 performed with the High Energy Stereoscopic System (H.E.S.S.) and XMM-Newton. A compact TeV gamma-ray source, HESSJ1818-154, located in the center and contained within the shell of G15.4+0.1 is detected by H.E.S.S. featuring a spectrum best represented by a power-law model with a spectral index of $-2.3 \pm 0.3_{stat} \pm 0.2_{sys}$ and an integral flux of F$(>0.42\,\mathrm{TeV}$)=($0.9 \pm 0.3_{\mathrm{stat}} \pm 0.2_{\mathrm{sys}}) \times 10^{-12}$...

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Composite supernova remnants (SNRs) constitute a small subclass of remnants of massive stellar explosions where non-thermal radiation is observed from both the expanding shell-like shock front and from a pulsar wind nebula (PWN) located inside of the SNR. These systems represent a unique evolutionary phase of SNRs where observations in the radio, X-ray and gamma-ray regimes allow the study of the co-evolution of both of these energetic phenomena. In this article, we report results from observations of the shell-type SNR G15.4+0.1 performed with the High Energy Stereoscopic System (H.E.S.S.) and XMM-Newton. A compact TeV gamma-ray source, HESSJ1818-154, located in the center and contained within the shell of G15.4+0.1 is detected by H.E.S.S. featuring a spectrum best represented by a power-law model with a spectral index of $-2.3 \pm 0.3_{stat} \pm 0.2_{sys}$ and an integral flux of F$(>0.42\,\mathrm{TeV}$)=($0.9 \pm 0.3_{\mathrm{stat}} \pm 0.2_{\mathrm{sys}}) \times 10^{-12}$...

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