English

The Hubble Constant from the HST Key Project on the Extragalactic Distance Scale

Astrophysics 2007-05-23 v1

Abstract

The final efforts of the HST Key Project on the Extragalactic Distance Scale are presented. Four distance indicators, the Surface Brightness Fluctuation method, the Fundamental Plane for early-type galaxies, the Tully-Fisher relation and the Type Ia Supernovae, are calibrated using Cepheid distances to galaxies within 25 Mpc. The calibration is then applied to distant samples reaching cz~10000 km/s and (in the case of SNIa) beyond. By combining the constraints imposed on the Hubble constant by the four distance indicators, we obtain H0 = 71+/-6 km/s/Mpc.

Keywords

Cite

@article{arxiv.astro-ph/9909134,
  title  = {The Hubble Constant from the HST Key Project on the Extragalactic Distance Scale},
  author = {Laura Ferrarese and Brad Gibson and Daniel Kelson and Shoko Sakai and Jeremy Mould and Wendy Freedman and Robert Kennicutt and Holland Ford and John Graham and John Huchra and Shaun Hughes and Garth Illingworth and Lucas Macri and Barry Madore and Kim Sebo and N. A. Silbermann and Peter Stetson},
  journal= {arXiv preprint arXiv:astro-ph/9909134},
  year   = {2007}
}

Comments

To appear in the proceedings of the Cosmic Flows Workshop, Victoria, Canada, July 1999, eds. S. Courteau, M. Strauss & J. Willick, ASP series. 10 pages, 2 figures