Estimation of the Hubble constant by the Effects of the cosmological constant

Details Estimation of the Hubble constant by the Effects of the cosmological constant Estimation of the Hubble constant by the Effects of the cosmological constant

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sf2a.conf..293p&link_type=abstract

SF2A-2006: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: D. Barret, F. Casoli, G.

Astronomy and Astrophysics

Astrophysics

Scientific paper

% We have modified the spherical infall model, first developed by Lemaître and Tolman, in order to include the effects of the cosmological constant. The resulting velocity-distance relation was evaluated numerically. This equation, when fitted to actual data, permits the simultaneous evaluation of the central mass and of the Hubble parameter. Application of this relation to the Local Group, to the Virgo cluster, to the M81 group, to the Sculptor group and to the IC342/Maffei group yields to a Hubble parameter H_0 = 74± 4 kms-1Mpc-1.

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