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Astronomy and Cosmology
Cosmology
Black hole mass coupled to expansion -- astrophysical source of dark energy?
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[QUOTE="PeterDonis, post: 6856558, member: 197831"] It doesn't have to get out. An average dark energy density can drive an average accelerated expansion. Just as an average normal matter density drives an average decelerated expansion. The cosmological models based on FRW spacetime are large scale averages; the fact that up to now the dark energy density has been [I]assumed[/I] to be the same everywhere (because in the absence of any evidence to the contrary that was the simplest model--basically a cosmological constant) does not mean the model stops working if it turns out the dark energy density is just a large scale average the way we already know the ordinary matter density is. [/QUOTE]
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Astronomy and Cosmology
Cosmology
Black hole mass coupled to expansion -- astrophysical source of dark energy?
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