
Massive multicolor digital surveys in the near infrared provide new opportunities for statistical analyses of the properties of groups and clusters. These galaxy systems provide a natural laboratory for studying dynamical processes and galaxy evolution, and serve as powerful cosmological diagnostics. The immediate scientific returns to be expected from near-infrared surveys such as DENIS and 2MASS are presented, and illustrated with simulated images of a Coma-like rich cluster.
invited paper to appear in Near Infrared Sky Surveys, ed. A. Omont (Dordrecht: Kluwer) in press (meeting held in les Houches, France Sept. 1993). 6 pages of uuencoded compressed PostScript Extract on UNIX with 'csh' after removing header: 1st line is '#/bin/csh -f'. with 1 figure. POP-DAEC-93061
Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics
Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics
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