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For refcode 1995AJ....109...14O:
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1995AJ....109...14O OPTICAL SPECTROSCOPY OF RADIO GALAXIES IN ABELL CLUSTERS. I. REDSHIFTS AND EMISSION-LINE PROPERTIES FRAZER N. OWEN AND MICHAEL J. LEDLOW National Radio Astronomy Observatory,4 Socorro, New Mexico 87801 Electronic mail: fowen@aoc.nrao.edu, mledlow@nmsu.edu WILLIAM C. KEEL Department of Physics and Astronomy, University of Alabama, Tuscaloosa, Alabama 35487 Electronic mail: keel@bildad.astr.ua.edu Received 1994 June 15; revised 1994 August 22 ABSTRACT We present results of a program of optical spectroscopy of radio galaxies in rich clusters. Redshifts are reported for 268 radio galaxies or close companions in Abell clusters and 36 objects which turned out to be foreground or background objects. Absolute line strengths are also reported for the 3727 A [O II] line and the [N II]/H{alpha} complex. We find no evidence that the radio activity in our sample of mostly FR I radio galaxies is associated with emission-line luminosities above those found in "normal" galaxies of the same absolute magnitude and optical type. We also find that the radial velocity differences between radio galaxies and the cluster mean seem mainly to be a function of galaxy absolute magnitude rather than radio properties.
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