出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The structure of a spherically symmetric stable dark 'star' is discussed, at
zero temperature, containing 1) a core of quarks in the decon ned phase and antileptons
2) a shell of hadrons in particular n, p, and − and leptons or antileptons and 3) a
shell of hydrogen in the superfluid phase. If the superfluid hydrogen phase goes over into
the electromagnetic plasma phase at densities well below one atom / ( 10 fm ) 3, as is
usually assumed, the hydrogen shell is insigni cant for the mass and the radius of the
'star'. These quantities are then determined approximatively : mass = 1.8 solar masses
and radius = 9.2 km. On the contrary if densities of the order of one atom / ( 10 fm ) 3
do form a stable hydrogen superfluid phase, we nd a large range of possible masses from
1.8 to 375 solar masses. The radii vary accordingly from 9 to 1200 km.
