In late stages, these objects are believed to begin crystallizing, and Metcalfe and Kanan posited that one of these called BPM37093 was 90% crystal. The equation of state for these objects, when taking relativity into account, interpolates between P proportional to density to the four-thirds for large density and to the five-thirds for small density. HL Tau was the first variable one of these discovered, and RAMBOs either
In late stages, these objects are believed to begin crystallizing, and Metcalfe and Kanan posited that one of these called BPM37093 was 90% crystal. The equation of state for these objects, when taking relativity into account, interpolates between P proportional to density to the four-thirds for large density and to the five-thirds for small density. HL Tau was the first variable one of these discovered, and RAMBOs either consist of these bodies or Brown Dwarves. The surface of an accreting one can undergo a runaway form of fusion called a helium flash. Ralph Fowler posited that if these objects exist as a Fermi gas, that the Pauli exclusion principle would keep them from collapsing on themselves; that result was used to show that they have masses less than 1.4 solar masses. For 10 points, name these objects subject to the Chandrashekar limit, a massive type of star. 
In late stages, these objects are believed to begin crystallizing, and Metcalfe and Kanan posited that one of these called BPM37093 was 90% crystal.
White dwarf