Search for Pulsed VHE gamma-ray Emission from Young Pulsars with H.E.S.S

Details Search for Pulsed VHE gamma-ray Emission from Young Pulsars with H.E.S.S Search for Pulsed VHE gamma-ray Emission from Young Pulsars with H.E.S.S

2005-07-17

arxiv.org/abs/astro-ph/0507388v1

Astronomy and Astrophysics

Astrophysics

4 pages, 1 figure, Proc. of 29th ICRC, Puna, India, 2005

Scientific paper

Pulsars are commonly regarded as highly magnetized neutron stars, rotating up to several hundred times per second. Over 1,500 radio pulsars have been found so far, about 70 of which are X-ray pulsars, but only a handful have been observed in gamma rays. This high-energy emission is believed to be produced by the electrons accelerated to TeV energies in the pulsar magnetosphere, resulting in cascades of secondary particles. The H.E.S.S. experiment is a system of four imaging atmospheric Cherenkov telescopes in Namibia, which is sensitive to gamma rays above 100 GeV. Three young pulsars, Crab, Vela, and PSR B1706-44 have been observed with H.E.S.S. The results of the search for pulsed emission for these targets, and the constraints on the theories of pulsed very high energy gamma-ray emission, are summarized here.

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