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25 April 2024

» arxiv » astro-ph/9809059

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A Cepheid Distance to the Fornax Cluster
B. F. Madore ; W. L. Freedman ; N. Silbermann ; P. Harding ; J. Huchra ; J. R. Mould ; J. A. Graham ; L. Ferrerase ; B. K. Gibson ; M. Han ; J. G. Hoessel ; S. M. Hughes ; G. D. Illingworth ; R. Phelps ; S. Sakai ; P. Stetson ;
Date:	4 Sep 1998
Subject:	astro-ph
Abstract:	The Hubble Space Telescope is being used to measure accurate Cepheid distances to nearby galaxies with the ultimate aim of determining the Hubble constant, H_0. For the first time, it has become feasible to use Cepheid variables to derive a distance to a galaxy in the southern hemisphere cluster of Fornax. Based on the discovery of 37 Cepheids in the Fornax galaxy NGC 1365, a distance to this galaxy of 18.6 +/- 0.6 Mpc (statistical error only) is obtained. This distance leads to a value of H_0 = 70 +/- 7 (random) +/- 18 (systematic) km/sec/Mpc in good agreement with estimates of the Hubble constant further afield.
Source:	arXiv, astro-ph/9809059
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