The velocity field of clusters of galaxies within 100 megaparsecs. I - Southern clusters

Details The velocity field of clusters of galaxies within 100 megaparsecs. I - Southern clusters The velocity field of clusters of galaxies within 100 megaparsecs. I - Southern clusters

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...383..467m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 383, Dec. 20, 1991, p. 467-486. Research supported by NSF.

Astronomy and Astrophysics

Astronomy

100

Cosmology, Galactic Clusters, Radio Astronomy, Velocity Distribution, Astronomical Models, Astronomical Photometry, Gravitational Fields, Radio Telescopes, Red Shift, Southern Sky

Scientific paper

Distances from the Tully-Fisher relation have been measured with the Parkes radio telescope for eight additional southern clusters of galaxies in the redshift range 2500-5000 km/s. Most of them have large (average 1000 km/s) positive peculiar velocities in a comoving frame in which the microwave background radiation shows no dipole anisotropy. In five out of eight cases these measurements have a significance at or above the 2-sigma level. Outflow is seen on both sides of the Galactic plane. The source of this large-scale flow, if gravitational in orgin, lies at or beyond the limit of the present sample.

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