Computer Science
Scientific paper
Jun 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988natur.333..644m&link_type=abstract
Nature (ISSN 0028-0836), vol. 333, June 16, 1988, p. 644, 645. NSF-supported research.
Computer Science
36
Accretion Disks, Gravitational Collapse, Neutron Stars, Pulsars, Stellar Evolution, Supernova Remnants, Light Curve, Stellar Envelopes, Stellar Magnetic Fields, Stellar Rotation
Scientific paper
The author has examined a simple model for gravitational fall-back of supernova ejecta to estimate the effect of delayed fall-back on pulsar activity from the central neutron star. A Kepler disk will be created with a mass of the order of 10-5M_sun; for the probable initial magnetic fields and rotation rates. The disk expected to be formed by fall-back is, at first, too distant to favour pulsar action. The author therefore predicts a neutron star disk that may be detectable when the nebula around SN 1987A clears. Because this disk should be composed of the same sort of shocked and highly processed matter that presently maintains the supernova light curve through radioactive heating, the disk should be hot and luminous, thereby providing a point power-law optical source in the nebula. Observational possibilities are pointed out.
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