H.E.S.S. Observations of the Young Composite SNR Kes 75

Details H.E.S.S. Observations of the Young Composite SNR Kes 75 H.E.S.S. Observations of the Young Composite SNR Kes 75

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1085..316t&link_type=abstract

HIGH ENERGY GAMMA-RAY ASTRONOMY: Proceedings of the 4th International Meeting on High Energy Gamma-Ray Astronomy. AIP Conferenc

Astronomy and Astrophysics

Astronomy

1

Astronomical And Space-Research Instrumentation, Pulsars, X-Ray Emission Spectra And Fluorescence, Supernova Remnants

Scientific paper

The composite supernova remnant (SNR) kes 75 harbors a bright pulsar wind nebula (PWN) powered by a young and energetic high magnetic field pulsar, which has recently been the subject of magnetar-like bursts. Besides, intense thermal X-ray emission from the remnant shell indicates that high density ambient matter is currently swept-up by the supernova shock. Observations of Kes 75 in the TeV range is therefore important because it probes the young PWN physics as well as cosmic ray acceleration in SNR shells because of the large target density for pion production and decay. H.E.S.S. has detected very high energy emission (VHE) from this object. We present an updated analysis of this object and discuss the actual origin of the VHE emission and the physical implications of this detection for the PWN and cosmic-ray (CR) acceleration by the SNR shell.

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