Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984ap%26ss.107..191u&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 107, no. 1, Dec. 1984, p. 191-197.
Astronomy and Astrophysics
Astrophysics
10
Gamma Ray Bursts, Magnetic Stars, Neutron Stars, Stellar Flares, Stellar Models, Supernova Remnants, Stellar Evolution, Stellar Magnetic Fields, Stellar Rotation
Scientific paper
A model of γ-bursts is considered that treats the flares of neutron stars as a result of convective-oscillation instability associated with the stars having strong internal magnetic fields (≡1013 to 1014G). In the context of this model only sufficiently old (104 to 107yr), drastically cooled-down neutron stars may be sources of γ-bursts. The paper shows that major characteristics of a γ-burster in the supernova N 49 remnant (energy release during burst up to ≡1044erg, age ≡ 104yr, burst-to-burst interval ≡(1 to 3)×106s; rotation period P = 8 s) may be explained under the assumption that the mass of the neutron star is about 0.14 M_sun; while its mean magnetic field strength is ≡1.5×1014G and ≡1013G within the star and on its surface, respectively. The observational tests of the model discussed conclude the paper.
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