Cosmology with Clusters of Galaxies

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Rich clusters of galaxies, the largest virialized systems known, place some of the most powerful constraints on cosmology. I discuss below the use of clusters of galaxies in addressing two fundamental questions: What is the mass-density of the universe? and how is the mass distributed? I show that several independent methods utilizing clusters of galaxies - cluster dynamics and mass-to-light ratio, baryon fractions in clusters, and cluster evolution -all indicate the same robust result: the mass-density of the universe is low, Ωm ≃ 0.2, and the mass approximately traces light on large scales.

Original languageEnglish (US)
Pages (from-to)32-36
Number of pages5
JournalPhysica Scripta T
Volume85
StatePublished - Dec 1 2000

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Cosmology with Clusters of Galaxies'. Together they form a unique fingerprint.

Cite this