Nearby galaxies. IV. The global Hubble parameter and the dispersion of the Hubble relation

Details Nearby galaxies. IV. The global Hubble parameter and the dispersion of the Hubble relation Nearby galaxies. IV. The global Hubble parameter and the dispersion of the Hubble relation

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996an....317..197s&link_type=abstract

Astronomische Nachrichten, vol. 317, no. 3, p. 197.

Astronomy and Astrophysics

Astronomy

2

Scientific paper

Using a spherically symmetric model of the Virgo flow the global Hubble parameter has been estimated from the observed radial velocities and the photometrically measured distances of nearby galaxies. Adopting the observed recession velocity of the Virgo Cluster to about 1000 km s(-1) and the infall velocity of the Local Group to 350 km s(-1) the global Hubble constant results to 73 +/- 10 km s(-1) Mpc(-) -1. This value corresponds with the distance of the Virgo Cluster of 18 +/- 2 Mpc. The cosmic dispersion of the galaxies around the Hubble relation is of order of 35 km s(-1) .

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