A Spectroscopic Survey of the Galaxy Cluster CL 1358+62 at z=0.328

Details A Spectroscopic Survey of the Galaxy Cluster CL 1358+62 at z=0.328 A Spectroscopic Survey of the Galaxy Cluster CL 1358+62 at z=0.328

1998-01-14

arxiv.org/abs/astro-ph/9801137v1

Astronomy and Astrophysics

Astrophysics

29 pages, 14 figures, uses aas2pp4, Accepted for publication in ApJ

Scientific paper

10.1086/305553

We present a spectroscopic survey of the rich, X-ray selected, galaxy cluster CL 1358+6245 at z=0.328. When our 173 new multi-slit spectra of cluster galaxies are combined with data from the literature, we produce a catalog of 232 cluster members in a region 10'x11' (3.5 Mpc x 3.8 Mpc) surrounding the brightest cluster galaxy. These data are used to study the structure and dynamics of the cluster and to examine the radial and velocity distributions as a function of spectral type. We classify the spectral types of the cluster members according to the strengths of the Balmer absorption lines (Hdelta, Hgamma, and Hbeta) and the [OII] 3727 Ang emission line.

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