
For what it's worth, I have fit all the data here, not just the scaling law portion in the interior. I tried just fitting the same range as I'd used before to fit r^{-\alpha}, the fit is equally bad.
Just as an experiment, I tried fitting the amplitude separately from the argument of sinh \rho(x)=a sinh^2(bx) but this fared no better, see here:

I noticed that this new functional form qualitatively resembled what was going on in the warm data much more. I decided to try fitting hte warm data, because it might be interesting if the warm data was reaching this so-called thermodynamic limit, but the cold data was somehow being prevented from doing so. The results were disappointing I must say, here are the 1 and 2 parameter fits for the warm data:


So, I guess it looks like none of our simulations agree with the Rybicki derivation of the eventual density profile.
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