# Homework Help: Astrophysics in a Nutshell Problem

1. Mar 3, 2014

### fu11meta1

1. The problem statement, all variables and given/known data

Consider a hypothetical star of radius R, with density ρ that is constant, i.e. independent of radius. The star is composed of a classical, non relativistic, ideal gas of fully ionized hydrogen,
Find the the temperature profile (T(r))

2. Relevant equations
dT(r)/dr = ( (-3*L(r)*k(r)*ρ(r)) / (4∏*(r^2)*4*a*c*(T(r))^3)
so sorry this is written poorly

3. The attempt at a solution
So what I did is try and assume which of the values on the right side are constant so I could take them outside of the integral, but I'm not sure.

Please explain principles and equations fully. I really want to understand this!

Last edited: Mar 4, 2014
2. Mar 4, 2014

### rude man

Maybe you could state the problem?

3. Mar 4, 2014

### fu11meta1

Oh sorry. I thought I did!
I edited it. I says find the temperature profile (T(r))