Hubble parameter


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Related to Hubble parameter: Hubble's law
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Noun1.Hubble parameter - (cosmology) the ratio of the speed of recession of a galaxy (due to the expansion of the universe) to its distance from the observer; the Hubble constant is not actually a constant, but is regarded as measuring the expansion rate today
cosmogeny, cosmogony, cosmology - the branch of astrophysics that studies the origin and evolution and structure of the universe
constant - a number representing a quantity assumed to have a fixed value in a specified mathematical context; "the velocity of light is a constant"
References in periodicals archive ?
5804 and H0 is the so called Hubble constant, the value of the Hubble parameter H(t) at t = [T.
You can also calculate the mass of the galaxy cluster and you can calculate what is called the Hubble parameter, which tells us about the expansion of the universe.
where H(t) is time dependent Hubble parameter, and that pressure [p.