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We identify a sample of 1959 massive clusters of galaxies in the redshift range of 0.7 0.75. By comparing them with clusters at lower redshifts, we confirm that richer clusters… Click to show full abstract
We identify a sample of 1959 massive clusters of galaxies in the redshift range of 0.7 0.75. By comparing them with clusters at lower redshifts, we confirm that richer clusters host more luminous brightest cluster galaxies (BCGs) also at high redshifts, and that the fraction of blue galaxies is larger in clusters at higher redshifts. A small fraction of BCGs show ongoing star formation or active nuclei. The number density profile of member galaxies in stacked samples of clusters shows no significant redshift evolution.
Keywords:
massive galaxy;
clusters high;
1959 massive;
galaxy clusters;
high redshifts;
sample 1959
Journal Title: Monthly Notices of the Royal Astronomical Society
Year Published: 2018
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Journal Title: Monthly Notices of the Royal Astronomical Society
Year Published: 2018
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!