Explosion of a low mass neutron star

Details Explosion of a low mass neutron star Explosion of a low mass neutron star

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990azh....67.1181b&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 67, Nov.-Dec. 1990, p. 1181-1194. In Russian.

Astronomy and Astrophysics

Astrophysics

22

Neutron Stars, Nuclear Astrophysics, Binary Stars, Explosions, Gamma Rays, Neutrinos, Numerical Integration, Stellar Mass, X Rays

Scientific paper

A process of hydrodynamic disruption of a neutron star is considered, in which its mass becomes smaller than the minimum value of 0.1 solar masses. The process is shown to proceed explosively, leading to complete dissipation of the neutron star with kinetic energy of 4.8 MeV per nucleon. The results of calculations are practically independent of the precise way in which the mass of the neutron star decreases below Mmin (mass exchange in a binary system, nucleon decay, equivalent mass loss due to decrease in the gravitational constant). Disruption of the neutron star should be accompanied by a short (0.01 - 0.1 s) burst of thermal hard X-rays and soft gamma rays (kT = 10-100 keV), followed by a much more prolonged 'tail' of X-rays and gamma rays due to decays of long-lived radioactive nuclides. Some portion of the explosive energy may be emitted in the form of neutrinos.

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