Peculiar velocities in the A 262 cluster

Details Peculiar velocities in the A 262 cluster Peculiar velocities in the A 262 cluster

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...258..265g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 258, no. 2, p. 265-268.

Astronomy and Astrophysics

Astrophysics

2

Astrometry, Galactic Clusters, Gravitational Effects, Perturbation Theory, Red Shift, Center Of Mass, Luminosity, Spiral Galaxies, Velocity Distribution

Scientific paper

Distances of galaxies in the A 262 cluster are obtained using the B, V-, and H-band Tully-Fisher relations. The derived range in distances (about 60 Mpc) is much larger than the range in observed velocities (about 2000 km/s). This suggests that large scale gravitational perturbations modify the velocity field of A 262, a cluster belonging to the Perseus-Pisces supercluster, and produce peculiar velocities of the order of 2000 km/s. It is argued that the Perseus cluster can be identified as the origin of tile observed perturbations.

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