A robust method for measuring the Hubble parameter

Details A robust method for measuring the Hubble parameter A robust method for measuring the Hubble parameter

1999-08-31

arxiv.org/abs/astro-ph/9908343v1

Mon.Not.Roy.Astron.Soc. 324 (2001) 717

Astronomy and Astrophysics

Astrophysics

4 pages, 1 figure, Cosmic Flows Workshop, Victoria B.C. Canada, July 1999, ed. S. Courteau, M. Strauss & J. Willick, ASP conf.

Scientific paper

10.1046/j.1365-8711.2001.04377.x

We obtain a robust, non-parametric, estimate of the Hubble constant from galaxy linear diameters calibrated using HST Cepheid distances. Our method is independent of the parametric form of the diameter function and the spatial distribution of galaxies and is insensitive to Malmquist bias. We include information on the galaxy rotation velocities; unlike Tully-Fisher, however, we retain a fully non-parametric treatment. We find $H_0=66\pm6$ km/s/Mpc, somewhat larger than previous results using galaxy diameters.

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