Supernovae, compact stars and nuclear physics

Conference · Fri Aug 25 00:00:00 EDT 1989

OSTI ID:5403274

Glendenning, N K

We briefly review the current understanding of supernova. We investigate the implications of rapid rotation corresponding to the frequency of the new pulsar reported in the supernovae remnant SN1987A. It places very stringent conditions on the equation of state if the star is assumed to be bound by gravity alone. We find that the central energy density of the star must be greater than 12 times that of nuclear density to be stable against the most optimistic estimate of general relativistic instabilities. This is too high for the matter to plausibly consist of individual hadrons. We conclude that the newly discovered pulsar, if its half-millisecond signals are attributable to rotation, cannot be a neutron star. We show that it can be a strange quark star, and that the entire family of strange stars can sustain high rotation under appropriate conditions. We discuss the conversion of a neutron star to strange star, the possible existence of a crust of heavy ions held in suspension by centrifugal and electric forces, the cooling and other features. 39 refs., 8 figs., 2 tabs.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5403274
• Report Number(s): LBL-27747; CONF-890826-6; ON: DE90002682; TRN: 89-029990
• Resource Relation: Conference: International nuclear physics conference, Sao Paulo (Brazil), 20-26 Aug 1989
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
SUPERNOVA REMNANTS
ROTATION
ENERGY DENSITY
EQUATIONS OF STATE
NEUTRINOS
NEUTRON STARS
PULSARS
QUARK MATTER
COSMIC RADIO SOURCES
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
LEPTONS
MASSLESS PARTICLES
MATTER
MOTION
STARS
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources