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For refcode 1995AJ....109.1458R:
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1995AJ....109.1458R THE REDSHIFT-SPACE NEIGHBORHOODS OF 36 LOOSE GROUPS OF GALAXIES. l. THE DATA MASSIMO RAMELLA Osservatorio Astronomico di Trieste, Via Tiepolo 11,34131 Trieste, Italy Electronic mail: ramella@oat.ts.astro.it MARGARET J. GELLER AND JOHN P. HUCHRA Harvard Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138 Electronic mail: mjg@cfa.harvard.edu, huchra@fang.harvard.edu JOHN R. THORSTENSEN Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire 03755-3528 Electronic mail: thorsten@darthmouth.edu Received 1994 July 11 ABSTRACT We have selected 36 loose groups of galaxies (RGH89) with at least five members, and with mean redshift <cz> > 3200 km s^-1^. These groups all lie within the first two "slices" of the CfA redshift survey (8^h^ <= {alpha} <= 17^h^ and 26.5^deg^ <= 38.5^deg^). For each of these groups, we define the "redshift-space neighborhood" as a region centered on the group coordinates and delimited by a circle of projected radius R_cir_ = 1.5h^-1^ Mpc on the sky, and by a velocity interval {delta}_cz) = 3000 km s^-1^. Here we give the redshifts of 334 galaxies in these redshift-space neighborhoods. For completeness, we also give the redshifts of the 232 original members. These data include 199 new redshifts. We demonstrate that these samples of fainter galaxies significantly increase the number of members.
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