Jeremy Mould , PASA, 17 (1), 45.
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Title/Abstract Page: The Hubble Constant
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Introduction
In a uniformly expanding Universe in which the solution to the field equations of General Relativity are consistent with the large scale distribution of matter, the dimensionless time derivative of the scale factor is H and its current value H0 is the Hubble Constant. The HST Key Project on the Extragalactic Distance Scale was announced in 1984 and called for proposals to measure the Hubble Constant to an accuracy of 10%. This project was recently brought to a successful conclusion (Mould etal. 1999).Following the analysis of Hipparcos parallaxes of nearby subdwarf stars, the uncertainty in the age of the Universe, t0, is of a similar order. If the second derivative of the scale factor were zero, the expansion of the Universe would be steady and H0 = t0-1. This paper examines the observational constraints on H0t0 and the implications for the global dynamics of the Universe.
Next Section: The results of the
Title/Abstract Page: The Hubble Constant
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