Cosmic rays and clusters of galaxies

W. H. Ip, W. I. Axford

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


The presence of a significant population of relic relativistic electrons -created at an early epoch of the Universe - has been invoked to explain the diffuse EUV emission excess observed in a number of galaxy clusters. While the postulated inverse Compton scattering of the 30 K background radiation by cosmic ray electrons might indeed be utilized as an important diagnostic tool for the physical nature of the intracluster cosmic rays, it is shown here that continuous generation plus reacceleration would be necessary if the conditions on the observed energy spectral distribution and energy supply rate are to be met in the case of clusters with large radio halos.

Original languageEnglish
Pages (from-to)437-442
Number of pages6
JournalAstrophysics and Space Science
Issue number1-4
StatePublished - 1998


Dive into the research topics of 'Cosmic rays and clusters of galaxies'. Together they form a unique fingerprint.

Cite this