The Cosmic Ray Yield Of Supernova Remnants IC 443 And Puppis A

Details The Cosmic Ray Yield Of Supernova Remnants IC 443 And Puppis A The Cosmic Ray Yield Of Supernova Remnants IC 443 And Puppis A

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21725624h&link_type=abstract

American Astronomical Society, AAS Meeting #217, #256.24; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

Supernovae have long been thought responsible for accelerating Galactic cosmic rays. Recent observations with the Fermi Gamma-ray Space Telescope clearly identify GeV energy emission towards several supernova remnants. Combining data from radio to gamma-rays, we assemble the broadband spectral energy distribution of IC 443 and Puppis A, supernova remnants which are interacting with molecular clouds and have spatially extended gamma-ray emission. We account for strong infrared emission from shock heated dust which contributes significantly to inverse Compton gamma-ray emission. Spectral breaks are detected at both radio and gamma-ray wavelengths, placing constraints on the underlying relativistic particle distribution responsible for nonthermal emission. We discuss the implications of our results for the yield of cosmic rays accelerated during the evolution of supernova remnants.

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