|
Description
The present paper is the first in a series presenting results of the "Streaming Motions of Abell Cluster" (SMAC) project. We present new spectroscopic data for 532 early-type galaxies, predominantly Abell cluster members with cz<12000km/s. We tabulate 919 individual measurements, from six observing runs, for recession velocity, cz, central velocity dispersion, {sigma}, and magnesium line-strength indices, Mg_2_ and Mgb. The median estimated error, per measurement, in {sigma} is 5 per cent. The Mg_2_ line-strength data have median errors of 0.009mag. The observed scatter between repeat measurements is largely accounted for by photon-counting errors. These data will be employed in forthcoming papers, where they will form part of a merged and standardized catalogue of Fundamental Plane data for use in cluster distance estimates and peculiar velocity analyses.
|
