SN1987A: Evolution of bolometric luminosity and the central neutron star

Details SN1987A: Evolution of bolometric luminosity and the central neutron star SN1987A: Evolution of bolometric luminosity and the central neutron star

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993acasn..34..130z&link_type=abstract

Acta Astronomica Sinica (ISSN 0001-5245), vol. 34, no. 2, p. 130-139

Physics

Light Curve, Neutron Stars, Stellar Envelopes, Stellar Luminosity, Stellar Physics, Supernova 1987A, Bolometers, Cobalt Isotopes, Radioactive Decay, Sodium Isotopes, Titanium Isotopes

Scientific paper

In this paper, the light curve powered by deposited decay energy (CO-56, CO-57, Ti-44, Na-2) in the shell of SN1987A is calculated. By comparing the calculated light curve with the observed bolometric luminosity curves, we think that the decay of the radioactive material cannot supply enough energy to power the luminosity of SN1987A after 900 days. It is more likely that the central neutron star would be n energy source. Several possible radiation mechanisms of the neutron star and their contribution to the luminosity are discussed. We conclude that accretion may be the dominant mechanism.

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