VERITAS Studies of the Supernova Remnants Cas A and IC 443

Abstract

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.

arXiv commentSubmitted to Proceedings of "4th Heidelberg International Symposium on High Energy Gamma-Ray Astronomy 2008"

References in corpus (4)

• Primary particle acceleration above 100 TeV in the shell-type Supernova Remnant RX J1713.7-3946 with deep H.E.S.S. observations
• The VERITAS standard data analysis
• Gamma-Ray Emission from PWNe Interacting with Molecular Clouds
• Association of Unidentified, Low Latitude EGRET Sources with Supernova Remnants

Cited by in corpus (11)

• Milagro Observations of Multi-TeV Emission from Galactic Sources in the Fermi Bright Source List
• Sensitivity of the High Altitude Water Cherenkov Detector to Sources of Multi-TeV Gamma Rays
• Fermi-LAT discovery of GeV gamma-ray emission from the young supernova remnant Cassiopeia A
• Space- and Ground-Based Gamma-Ray Astrophysics
• A Decline in the Nonthermal X-ray Emission from Cassiopeia A
• Cosmic Ray Studies with the Fermi Gamma-ray Space Telescope Large Area Telescope
• Nuclear de-excitation line spectrum of Cassiopeia A
• Observation of Galactic Gamma-ray Sources with VERITAS
• Implications of supernova remnant origin model of galactic cosmic rays on Gamma rays from young supernova remnants
• Gamma Ray Astronomy and the Origin of Galactic Cosmic Rays
• An Asymmetrical Model for High Energy Radiation of Cassiopeia A