Talk:Maxwell–Jüttner distribution

Notes[edit]

This page was created from content that was originally at Maxwell–Boltzmann distribution. Like that article, it would be nice to have a Probability Distribution infobox. However there are two interesting distributions here:

Distribution in Lorentz factor (the distribution currently shown)
Distribution in speed (very interesting... particles pile up on a "velocity shell" at the speed of light" !)

Hopefully future edits can demonstrate both distributions. --Nanite (talk) 12:44, 11 September 2013 (UTC)[reply]

Is the graph wrong?[edit]

I think the graph is wrong. Indeed, if I take Θ=1 and log(γ)=1.5, I get log(f(γ))~-2 and it is -10 in the graph (see http://www.wolframalpha.com/input/?i=log%28%28x^2*sqrt%281-1%2Fx^2%29%2FK2%281%29%29*e^-x%29+for+x%3De^1.5)

2001:620:600:A800:BDDC:AF5D:2862:FCDB (talk) 15:35, 23 November 2015 (UTC)[reply]

The graph is correct in case anyone is concerned. It's just using log base 10 for both axes. (see http://www.wolframalpha.com/input/?i=log10%28%28x^2*sqrt%281-1%2Fx^2%29%2FK2%281%29%29*e^-x%29+for+x%3D10^1) for example. That is if Θ=1, log10(γ)=1 is taken, we get log10(f(γ))≈-2.6, which roughly lines up on the graph. Katachresis (talk) 20:44, 25 April 2016 (UTC)[reply]

Equation does not appear in citation[edit]

The key equation in this article,

$f(\gamma )={\frac {\gamma ^{2}\beta }{\theta K_{2}(1/\theta )}}\exp \left(-{\frac {\gamma }{\theta }}\right),$

is credited to Synge (1957). I'm looking at the text right now, and the closest I can come is Synge's Equation (118), which omits the factor of $\gamma ^{2}\beta$ from the distribution function (as well as including a handful of constants for the purpose of correct normalization). Can somebody clarify where in Synge (1957) this equation is supposed to come from? [Edit: ignore this. As usual, I spend days staring at a problem only to discover the solution right after asking someone else.] 113.35.73.46 (talk) 08:34, 29 July 2017 (UTC)[reply]