VERITAS Studies of the Supernova Remnants Cas A and IC 443

VERITAS observed the supernova remnants Cassiopeia A (Cas A) and IC 443 during 2007, resulting in strong TeV detections of both sources. Cas A is a young remnant, and bright in both the radio and nonthermal X-rays, both tracers of cosmic-ray electrons. IC 443 is a middle-aged composite remnant inter...

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Bibliographic Details
Published in:High Energy Gamma-Ray Astronomy (AIP Conference Proceedings Volume 1085) 2009-01, Vol.1085, p.357-360
Main Author: Humensky, T B
Format: Article
Language:English
Online Access:Get full text
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Summary:VERITAS observed the supernova remnants Cassiopeia A (Cas A) and IC 443 during 2007, resulting in strong TeV detections of both sources. Cas A is a young remnant, and bright in both the radio and nonthermal X-rays, both tracers of cosmic-ray electrons. IC 443 is a middle-aged composite remnant interacting with a molecular cloud; the molecular cloud provides an enhanced density of target material for hadronic cosmic rays to produce TeV gamma rays via pion decay. The TeV morphology -point-like for Cas A and extended for IC 443 -will be discussed in the context of existing multiwavelength data on the remnants.
ISSN:0094-243X
DOI:10.1063/1.3076680