compact star; compact object
Astronomical term for a stellar remnant with extremely high density, such as a white dwarf, neutron star, or black hole.
Compact stars are formed in the final stages of stellar evolution.
Neutron stars are one of the typical compact stars.
A specific type of compact star (white dwarf), while 高密度星 is the broader category.
A neutron star is a kind of compact star; 高密度星 is the general term.
Black holes are also considered compact objects, but 高密度星 usually refers to stellar remnants with a physical surface.
Compound of 高密度 (high density) + 星 (star). A straightforward descriptive term in astronomy.