Please use this identifier to cite or link to this item:
Scopus Web of Science® Altmetric
Type: Conference paper
Title: Extended VHE γ-ray emission towards SGR1806-20 and stellar cluster C1 1806-20
Other Titles: Extended VHE gamma-ray emission towards SGR1806-20 and stellar cluster C1 1806-20
Author: Rowell, Gavin Peter
Naurois, Mathieu De
Atai, Arache Djannati
Gallant, Yves A.
H.E.S.S. Collaboration
Citation: AIP Conference Proceedings, 2012; 1505:273-276
Publisher: American Institute of Physics
Issue Date: 2012
ISBN: 9780735411234
ISSN: 0094-243X
Conference Name: International Meeting on High Energy Gamma-Ray Astronomy (5th : Heidelberg, Germany : 9-13 July 2012)
School/Discipline: School of Chemistry and Physics
Statement of
Gavin Rowell, Mathieu De Naurois, Arache Djannati Ataï, Yves Gallant, and H.E.S.S. Collaboration
Abstract: We report the discovery, with the H.E.S.S. telescopes, of steady and extended VHE γ-ray emission towards the magnetar candidate SGR 1806-20 and parent stellar cluster C1 1806-20. Preliminary analysis suggests the VHE γ-ray flux of this source, designated HESS J1808-204 is a few×10−13 ph cm−2 s−1 TeV−1 at 1 TeV with a power-law photon spectral index Γ  =  2.4±0.2. The instrinsic extension and orientation matches that of the synchrotron radio nebula G10.0-0.3 which may be powered by the luminous blue variable star LBV 1806-20, a prominent member of the C1 1806-20 cluster. From the energetics of the combined VHE, X-ray, and nearby Fermi-LAT GeV emission, magnetar magnetic energy may be a dominant source of energy over spin-down power, should SGR 1806-20 power the source. Alternatively, C1 1806-20 and/or LBV 1806-20 by itself, via stellar winds, could supply sufficient energy.
Rights: © 2012 American Institute of Physics
DOI: 10.1063/1.4772250
Appears in Collections:IPAS publications

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.