full of an effective photon gas inside a fictional package whoever regularity V” is wrong because photon gas is not limited to a good limited regularity in the course of history scattering.
Author’s response: I consider Ryden?s textbook as representative of the present standard approach to cosmology (checked for orthodoxy by several authorities in the field), and it says: “Consider a region of volume V which expands at the same rate as the universe, so that V prop. a(t) 3 . ? = ?T 4 .” This is model 4 – neither model 1 nor model 5.
The brand new blackbody rays throughout the frequency will be understood to be a good photon gas with energy occurrence ?
Reviewer’s feedback: A discuss the fresh author’s response: “. an enormous Screw model is actually revealed, as well as the fictional box does not are present in the wild. Regardless of this, the newest computations are carried out as if it had been establish. Ryden right here just comes after a heritage, but here is the cardinal blunder I discuss about 2nd passage below Design 2.Continue Reading..
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