Degenerate Fermion Gases

So far we have taken T=0 and a Fermi gas at T=0 is called completely degenerate, since all the states in each level are full
At T << Fermi Temperature the distribution is not very different than the T=0 case and the gas is called extremely degenerate. This is the case with all metals at usual temperatures (and also for WD stars - see below)

So far we have taken T=0 and a Fermi gas at T=0 is called completely degenerate, since all the states in each level are full