ROSAT HRI observations of four high-redshift clusters of galaxies

Jennifer L. Sokoloski, Ruth A. Daly, Simon J. Lilly

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ROSAT HRI data for four rich clusters of galaxies at redshifts of ∼0.5 that contain radio sources are presented. One of the clusters, 53W080, is detected at the 5.2 σ level; 53W076 is marginally detected at the 2.7 σ level; and the other two clusters, 1130 + 34 and 1245 + 34, have interestingly low upper bounds on their X-ray luminosities. The X-ray emission is unresolved and could originate from either the hot intracluster medium or the radio source. A comparison of the expected and observed X-ray luminosity of 53W080 suggests that the X-ray emission from this source is produced by the active galactic nucleus (AGN).

Original languageEnglish (US)
Pages (from-to)142-146
Number of pages5
JournalAstrophysical Journal
Issue number1 PART I
StatePublished - 1996

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


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