Detection of distant galaxy clusters

Details Detection of distant galaxy clusters Detection of distant galaxy clusters

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...223....1c&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 223, no. 1-2, Oct. 1989, p. 1-8.

Astronomy and Astrophysics

Astrophysics

10

Galactic Clusters, Galactic Evolution, Magnitude, Red Shift, Signal To Noise Ratios

Scientific paper

Detection of distant clusters of galaxies and selection effects that may bias observations are analyzed through a series of simulations of galaxy clusters of different morphologies, projected at various redshifts on a random galaxy background; signal-to-noise ratios and visibility curves as a function of redshift are provided for the J and F passbands. It is shown that, in order to detect at least spiral rich clusters of Abell richness classes 4-5 at z of about 1, assuming no evolution, surveys with limiting magnitudes J of about 26 and F of about 24 are needed. Present models of galaxy evolution increase the signal-to-noise ratio, favoring cluster visibility.

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