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Date and Time of the Query: 2019-08-24 T01:04:22 PDT
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For refcode 1992ApJ...396..453H:
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1992ApJ...396..453H PECULIAR VELOCITIES OF CLUSTERS IN THE PERSEUS-PISCES SUPERCLUSTER M. HAN AND J. R. MOULD Palomar Observatory, Caltech 105-24, Pasadena, CA 91125 Received 1991 December 2; accepted 1992 March 17 ABSTRACT Photometry is presented for spiral galaxies in five clusters of galaxies in the direction of the Perseus-Pisces supercluster. We employ the 21 cm observations of these galaxies by Giovanelli, Haynes, and colleagues to measure distances of these clusters by means of the Tully- Fisher relation. Most of these are in fact more distant than the supercluster and have peculiar velocities averaging -400 km s^-1^. This is broadly in agreement with the earlier result of Willick who analyzed a large field sample. Examination of the behavior of the whole sample of 21 clusters with Tully-Fisher distances within 10^4^ km s^-1^ is suggestive of the bulk flow kinematic model originally fitted to elliptical galaxies in this volume by the Seven Samurai. However, a local model in which galaxies are infalling to two mass concentrations, one in Perseus-Pisces and one in Hydra-Centaurus, fits the data at least as well as bulk flow. The present data leave both these possibilities open. Subject headings: galaxies: clustering - galaxies: distances and redshifts - galaxies: kinematics and dynamics - galaxies: photometry - radio lines: atomic
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