VERITAS Observations of the Supernova Remnant IC 443
POSTER
Abstract
Supernova remnants (SNRs) are widely considered to be the strongest candidate for the source of cosmic rays below the knee around $3 \cdot 10^{15}\ \textrm{eV}$. 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.
Authors
-
Brian Humensky
University of Chicago Enrico Fermi Institute