... Abell 970

Based on observations made at ESO, La Silla (Chile), Haute-Provence and Pic du Midi Observatories (France).

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... database

The NASA/IPAC Extragalactic Database (NED) is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.

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... IRAF

IRAF is distributed by the National Optical Astronomy Observatories, which are operated by the Association of Universities for Research in Astronomy, Inc., under cooperative agreement with the National Science Foundation.

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...

Table 1 is also available in electronic form at the CDS via anonymous ftp to (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/377/428.

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... 0.0587)

In this paper the mean and dispersion velocities are given as biweighted estimates, see Beers et al. (1990).

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