New cluster candidates in the extended XMM Lockman Hole field

A. Finoguenov, A. Streblyanska*, G. Hasinger, Y. Hashimoto, G. Szokoly

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We describe the results of a search for diffuse sources in the 0.4 deg 2 area of the XMM-Newton 770 ks survey of the Lockman Hole. An abundant population of sources is revealed, which is likely to stem from low-mass galaxy clusters at redshift near 1. We present the optical images in the K′ and R-bands for our candidates, suggesting a concentration of red galaxies at the position of the X-ray sources. Together with our improved understanding of the baryon physics in low-mass clusters these results reveal the important role that deep X-ray surveys will play in cosmological studies.

Original languageEnglish
Pages (from-to)710-714
Number of pages5
JournalAdvances in Space Research
Issue number4
Publication statusPublished - 2005
Externally publishedYes


  • Clusters
  • Galaxy clusters
  • Galaxy groups
  • Large scale structure of the Universe
  • Observational cosmology
  • X-ray sources

ASJC Scopus subject areas

  • Aerospace Engineering
  • Astronomy and Astrophysics
  • Geophysics
  • Atmospheric Science
  • Space and Planetary Science
  • General Earth and Planetary Sciences


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