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Home » Literature » Reference Lookup

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TitleStreaming motions of galaxy clusters within 12000kms-1 - I. New spectroscopic data
AuthorsSmith, Russell J.; Lucey, John R.; Hudson, Michael J.; Schlegel, David J.; Davies, Roger L.
Bibcode

2000MNRAS.313..469S   Search ADS ↗

AbstractWe present new spectroscopic data for 532 early-type galaxies, predominantly Abell cluster members with cz<12000kms-1. We tabulate 919 individual measurements, from six observing runs, for recession velocity, cz, central velocity dispersion, σ, and magnesium line-strength indices, Mg2 and Mgb. The median estimated error, per measurement, in σ is 5 per cent. The Mg2 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.
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National Aeronautics and Space Administration under
Award Number 80NSSC21M0037, and operated by the California Institute of Technology.

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