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| The GRB observing program of the H.E.S.S. phase II telescope array |
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Seminar Title |
The GRB observing program of the H.E.S.S. phase II telescope array |
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Speaker: |
Dr. Thomas Tam |
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Affiliation: |
(Sun yat-sen university institute of astronomy and space science) |
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When: |
Wednesday afternoon , June 10, 16:00 p.m |
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Where: |
( No.502 Lecture Hall, Astronomy Building, Nanjing University xianlin campus,) |
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Welcome to Attend |
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( PMO Academic Committee & Academic Circulating committee) |
| | Abstract It has long been predicted that gamma-ray bursts (GRBs) can emit gamma-rays up to 100 GeV or above. >10 GeV photons have been seen from a small but significant population of bright GRBs, including the remarkable GRB 130427A. However, observations by the space-borne Fermi Large Area Telescope (LAT) at these very-high energies are limited by its relatively small collection area, marking the origin of very-high energy gamma-rays from GRBs uncertain. In contrast, ground-based Cherenkov arrays have much larger collection area. The H.E.S.S. experiment has now entered its second phase by the addition of a fifth telescope of 600 m2 mirror area at the centre of the array. This new telescope lowers the array energy threshold from ~100 GeV to tens of GeV. The status of the H.E.S.S. (phase II) GRB observing program including the technical optimization for quick re-pointings is described. |
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Copyright？ Purple Mountain Observatory, CAS, No.10 Yuanhua Road, Qixia District, Nanjing 210023, China
Phone: 0086 25 8333 2000 Fax: 8333 2091 http://english.pmo.cas.cn |
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