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Talk:Jeans mass

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Mass of the first stars

4.2.1 Growth of primordial fluctuations has a nice Fig. 14, "The evolution of Jean's mass as a function of a (the cosmological scale factor taking its present value as unit, i.e. a = R/R0)." It shows that there were dramatic and complex variations in the Jeans mass in the very early universe, but since the time of recombination, the Jeans mass has decreased as a power law (M_J ~ a^-2/3). That would mean around the time the first stars were forming (a ~ 0.01), the Jeans mass must have been 20 solar masses. I may not have all the details right, but it looks like this figure is in the right ball park. —Awc 13:26, 3 November 2011 (UTC)

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