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25 April 2024

» arxiv » astro-ph/9909134

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The Hubble Constant from the HST Key Project on the Extragalactic Distance Scale
Laura Ferrarese ; Brad Gibson ; Daniel Kelson ; Shoko Sakai ; Jeremy Mould ; Wendy Freedman ; Robert Kennicutt ; Holland Ford ; John Graham ; John Huchra ; Shaun Hughes ; Garth Illingworth ; Lucas Macri ; Barry Madore ; Kim Sebo ; N.A. Silbermann ; Peter Stetson ;
Date:	8 Sep 1999
Subject:	astro-ph
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.
Source:	arXiv, astro-ph/9909134
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