2008

Gamma-ray emission from the solar halo and disk: a study with EGRET data

Orlando, Elena, Strong, Andrew W.

Understand

Context: The Sun has recently been predicted to be an extended source of gamma-ray emission, produced by inverse-Compton (IC) scattering of cosmic-ray (CR) electrons on the solar radiation field.

  • The emission was predicted to be extended and a confusing foreground for the diffuse extragalactic background even at large angular distances from the Sun.
  • The solar disk is also expected to be a steady gamma-ray source.
  • While these emissions are expected to be readily detectable in the future by GLAST, the situation for available EGRET data is more challenging.

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