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Astrophysics > High Energy Astrophysical Phenomena

arXiv:1307.6897 (astro-ph)
[Submitted on 26 Jul 2013]

Title:Searching for TeV emission from GRBs: the status of the H.E.S.S. GRB programme

Authors:D. Lennarz, P.M. Chadwick, W. Domainko, R.D. Parsons, G. Rowell, P.H.T. Tam (for the H.E.S.S. collaboration)
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Abstract:H.E.S.S. is an array of five Imaging Atmospheric Cherenkov Telescopes (IACTs) located 1800 m above sea level in the Khomas Highland of Namibia and is sensitive to very-high-energy (VHE) gamma rays between tens of GeV to tens of TeV. The very-high background rejection capabilities of IACTs provide excellent sensitivity of H.E.S.S. to GRBs. In this contribution the status of the H.E.S.S. GRB programme, already started in 2003, is reviewed. A highlight is the recent addition of the fifth telescope, which is the world's largest IACT. Its 600 square metre mirror lowers the energy threshold to tens of GeV and provides an effective area that is ten thousands of times larger than Fermi-LAT at these energies. The higher performance drive system will reduce the response time to a GRB alert, which will significantly enhance the chances of a H.E.S.S. GRB detection. Recent results on selected GRBs will be shown.
Comments: 7th Huntsville Gamma-Ray Burst Symposium, GRB 2013: paper 38 in eConf Proceedings C1304143
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE)
Cite as: arXiv:1307.6897 [astro-ph.HE]
  (or arXiv:1307.6897v1 [astro-ph.HE] for this version)
  https://doi.org/10.48550/arXiv.1307.6897

Submission history

From: Dirk Lennarz [view email]
[v1] Fri, 26 Jul 2013 00:20:15 UTC (23 KB)
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