Origin of the high energy extragalactic diffuse gamma ray background

Arnon Dar*, Nir J. Shaviv

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Scopus citations


Recent x-ray observations have discovered that groups and clusters of galaxies contain many more baryons in intergalactic gas than in stars. If high-energy cosmic rays are present there with an average intensity comparable to that observed in our Galaxy, they could produce the extragalactic diffuse gamma radiation.

Original languageAmerican English
Pages (from-to)3052-3055
Number of pages4
JournalPhysical Review Letters
Issue number17
StatePublished - 1995
Externally publishedYes


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