The cosmic distance scale

Details The cosmic distance scale The cosmic distance scale

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26arv...1..111v&link_type=abstract

Astronomy and Astrophysics Review (ISSN 0935-4956), vol. 1, July 1989, p. 111-139.

Astronomy and Astrophysics

Astronomy

82

Astrometry, Cosmology, Local Group (Astronomy), Virgo Galactic Cluster, Andromeda Galaxy, Charge Coupled Devices, Distance, Dwarf Stars, Globular Clusters, Hubble Constant, Variable Stars

Scientific paper

The present evaluation of the current understanding of the cosmic distance problem presents internally-consistent distances to the Local Group galaxies, and notes their distance scale to be 11 + or - 5 percent smaller than previously noted by Sandage and Tammann (1981, 1982). By using distances to nearby galaxies as stepping-stones to the Virgo cluster, the cluster's distance modulus is found to be 31.5 + or - 0.2, which corresponds to a distance of 20 + or - 2 Mpc. In view of V for the elliptical galaxies at the Virgo cluster's core of 1200 + or - 46 km/sec, and therefore a Local Group V of 1082 + or - 48 km/sec, a cosmological redshift V of 1332 + or - 69 km/sec is obtained, corresponding to H(0) of 67 + or - 8 km/sec per Mpc.

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