Osse search for high-energy X-ray emission from the Coma Cluster

Yoel Rephaeli*, Melville P Ulmer, Duane Gruber

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


Nonthermal emission of high-energy X-rays from the Coma Cluster is predicted from the presence of diffuse intracluster radio synchrotron emission. We have observed the Coma Cluster with the OSSE experiment, onboard the Compton Gamma-Ray Observatory, for a total on-source time of 4.4 days. No significant emission was detected. The flux upper limit, combined with the known radio flux, leads to a lower limit of ∼1 × 10-7 G on the mean intracluster magnetic field in the central region of the Coma Cluster.

Original languageEnglish (US)
Pages (from-to)554-556
Number of pages3
JournalAstrophysical Journal
Issue number2
StatePublished - Jul 10 1994


  • Galaxies: clusters of (Coma)
  • Intergalactic medium
  • Magnetic fields
  • Radiation mechanisms : nonthermal
  • X-rays: galaxies

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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