The Hubble constant free from local velocity effects.
Abstract
Galaxies from the Muenster Redshift Project (MRSP) with redshifts up to z = 0.15 are referred to a common redshift z_r_ = 0.1 in order to obtain an apparent luminosity function (LF). A comparison LF is constructed from Virgo cluster members and subsequently used in a simulation of the FriedmannLemaitre universe with a freely chosen value for the Hubble constant. The simulation takes into account the known redshift errors of the MRSP. With an adopted distance modulus for the Virgo cluster, the true Hubble constant can be determined from the magnitude shift between the observed MRSPLF and the LF obtained from the simulation. The redshift of the Virgo cluster is not used and the MRSP redshifts are large, so that the method is independent of local redshift measurements and their corrections for infall velocities and peculiar motions. Preliminary values for the Hubble constant are obtained: H_0_ = 44 Km s^1^ Mpc^1^ adopting the distance modulus (m  M)^virgo^ = 31.7, H_0_ = 63 Km s^1^ Mpc^1^ adopting (m  M)^virgo^ = 30.9.
 Publication:

Astronomy and Astrophysics
 Pub Date:
 October 1992
 Bibcode:
 1992A&A...264....1D
 Keywords:

 Hubble Constant;
 Virgo Galactic Cluster;
 Luminosity;
 Monte Carlo Method;
 Red Shift;
 Astrophysics