Grey atmosphere
= Grey atmosphere
{wiki}
A grey atmosphere has frequency-independent opacity. In plane-parallel radiative equilibrium under the Eddington closure, its temperature obeys
$$
T^4=\frac34T_{\rm eff}^4\left(\tau+\frac23\right).
$$
= Grey atmosphere
{wiki}
A grey atmosphere has frequency-independent opacity. In plane-parallel radiative equilibrium under the Eddington closure, its temperature obeys
$$
T^4=\frac34T_{\rm eff}^4\left(\tau+\frac23\right).
$$