Eddington-Barbier relation
= Eddington-Barbier relation
{c}
{wiki=Eddington–Barbier_relation}
When the source function varies approximately linearly with optical depth, the emergent intensity obeys $I_\nu(0,\mu)\simeq S_\nu(\tau_\nu=\mu)$.
= Eddington-Barbier relation
{c}
{wiki=Eddington–Barbier_relation}
When the source function varies approximately linearly with optical depth, the emergent intensity obeys $I_\nu(0,\mu)\simeq S_\nu(\tau_\nu=\mu)$.