  Fermi Dirac free electron model is applied to very dense plasmas with medium
or low temperatures. While Boltzmann statistics can lead to very high densities
of ionized electrons, only at very high temperatures, Fermi Dirac statistics
can support the high densities of ionized electrons at medium or low
temperatures due to the high degeneracies obtained in this model. Since very
dense plasmas may be obtained at low temperatures the corresponding black body
radiation with the plasma luminosity will be quite small. On the other hand
gravitational effects might be quite large due to the high densities. The
optical properties for dense plasmas are calculated. The present study might
have implications to dense stars plasma.
