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Astrophysics

Title: VHE gamma ray absorption by galactic interstellar radiation field

Abstract: Adopting a recent calculation of the Galactic interstellar radiation field, we calculate the attenuation of the very high energy gamma rays from the Galactic sources. The infra-red radiation background near the Galactic Center is very intense due to the new calculation and our result shows that a cutoff of high energy gamma ray spectrum begins at about 20 TeV and reaches about 10% for 50 TeV gamma rays.
Comments: 6 pages, 1 figure, figure is changed, conclusion not changed
Subjects: Astrophysics (astro-ph)
Journal reference: Astron.Astrophys.449:641,2006
DOI: 10.1051/0004-6361:20054422
Cite as: arXiv:astro-ph/0508236
  (or arXiv:astro-ph/0508236v2 for this version)

Submission history

From: Xiaojun Bi [view email]
[v1] Wed, 10 Aug 2005 13:47:21 GMT (9kb)
[v2] Sun, 14 Aug 2005 02:36:09 GMT (9kb)