Proton Repulsion Error: I think Charles' point about proton repulsion needing to vary as temperature varies, according to Mathis' theory, is a good point that may indicate an error in the theory. So that may be useful to discuss here. I posted a question for Mathis on that point at Re: Mathis' Theory: Proton-Proton Repulsion.

My Response: At Re: Mathis' Theory: Proton-Proton Repulsion I said:
My initial guess is that protons can intake only so many photons per second, so after a certain photon density is reached, which might correlate sometimes with temperature somewhat, the rate of emission remains the same thereafter, regardless of the density, except where the photon density is extreme, as in stellar interiors, where the protons may often dissolve and reform frequently. If I get time, I'll see if I can find anything Mathis may have already said on this subject.