VERITAS Observations of the Supernova Remnant IC 443

Details VERITAS Observations of the Supernova Remnant IC 443 VERITAS Observations of the Supernova Remnant IC 443

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aps..apr.e1020h&link_type=abstract

American Physical Society, 2009 APS April Meeting, May 2-5, 2009, abstract #E1.020

Physics

Scientific paper

Supernova remnants (SNRs) are widely considered to be the strongest candidate for the source of cosmic rays below the knee around 3 .10^15 eV. In the last few years, TeV gamma-ray observations of SNRs have opened a new window on the high-energy processes occurring in their shock fronts. VERITAS, an array of four gamma-ray telescopes located at the Whipple Observatory in southern Arizona, has an active program of SNR observations. Recent results include the co-discovery (along with MAGIC) of TeV emission from IC 443. In the case of IC 443, a deep observation reveals that the emission is extended and coincident in space with the site of interaction between the expanding shell of the SNR and a nearby molecular cloud. These results and their implications for the nature of the cosmic rays - hadronic or electronic - accelerated in the remnants will be discussed.

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