SN 1988A in M58 - A type II-P supernova with a high late-time luminosity

Ruiz-Lapuente, P.; Canal, R.; Kidger, M.; Lopez, R.
Referencia bibliográfica

Astronomical Journal (ISSN 0004-6256), vol. 100, Sept. 1990, p. 782-787. Research supported by the Delegacion General de Investigacion Cientifica y Tecnologica.

Fecha de publicación:
Número de autores
Número de autores del IAC
Número de citas
Número de citas referidas
SN 1988A is (with exception of the well-observed SN 1987A) the only type II SN for which observations of the late tail of the light curve are presently available. This SN showed a brief spike in the early visual light curve followed by a long plateau lasting for about 3 months. Spectra taken during both the plateau and the postplateau phases confirm its being also a classical event of the type II-P class, very similar to SN 1969L and SN 1986I. In this paper, the visual light curve up to 500 days after maximum is reconstructed, and the possible mechanisms that can contribute to the very late luminosity are reviewed. Radioactive decay of Co-56 seems to be the main contributor to very late luminosity.