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Dynamics of clusters of galaxies with central dominant galaxies. I - Galaxy redshiftsOptical redshifts are presented for a sample of 638 galaxies in the fields of the clusters Abell 85, DC 0107-46, Abell 496, Abell 2052, and DC 1842-63. The velocity histograms and wedge diagrams show evidence for a foreground sheet of galaxies in Abell 85 and background sheets of galaxies in DC 0107-46 and Abell 2052. The foreground group projected against the center of Abell 85 found by Beers et al. (1991) is confirmed. No evidence of substructure was found in Abell 496, Abell 2052, and DC 1842-63. The clusters have global velocity dispersions ranging from 551 km/s for DC 1842-63 to 714 km/s for A496, and flat dispersion profiles. Mass estimates using the virial theorem and the projected mass method range from 2.3 x 10 exp 14 solar masses for DC 0107-46 to 1.1 x 10 exp 15 solar masses for A85.
Document ID
19920067102
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Malumuth, Eliot M.
(Computer Sciences Corp.; NASA, Goddard Space Flight Center Greenbelt, MD, United States)
Kriss, Gerard A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Van Dyke Dixon, W.
(Johns Hopkins University Baltimore, MD, United States)
Ferguson, Henry C.
(Cambridge University Institute of Astronomy, United Kingdom)
Ritchie, Christine
(Space Telescope Science Institute Baltimore, MD, United States)
Date Acquired
August 15, 2013
Publication Date
August 1, 1992
Publication Information
Publication: Astronomical Journal
Volume: 104
Issue: 2 Au
ISSN: 0004-6256
Subject Category
Astrophysics
Accession Number
92A49726
Funding Number(s)
CONTRACT_GRANT: NAS5-30253
Distribution Limits
Public
Copyright
Other

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