## Wednesday, October 22, 2014

### Eddington temperature

Astrophysical objects are limited in their luminosity by the Eddington luminosity, where radiation pressure exceeds gravity. Would it be sensible to define a limiting Eddington-temperature for Planckian spectra?

#### 1 comment:

1. quite so: although the Eddington-luminosity makes no assumption about spectral distribution (apart from the fact that it uses the Thomson-cross section which is only valid for small photon energies $\ll m_ec^2$), it's sensible to express the luminosity by the Stefan-Boltzmann-relation in terms of a temperature, $L\propto \sigma_{SB}T^4$.