On the stellar progenitor of the type Ib supernova 1984L

Details On the stellar progenitor of the type Ib supernova 1984L On the stellar progenitor of the type Ib supernova 1984L

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...409..417b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 409, no. 1, p. 417-421.

Astronomy and Astrophysics

Astrophysics

18

Astronomical Photometry, Astronomical Spectroscopy, Stellar Evolution, Supernovae, Light Curve, Polytropic Processes

Scientific paper

Photometric and spectroscopic data on the Type Ib SN 1984L and the probable Type Ib SN 1985F near maximum light and at late times appear to lead to contradictory conclusions. At early times a low mass and/or a high explosion energy is indicated, while at late times a high mass and/or a low explosion is indicated. Several possibilities for resolving the discrepancy are considered. The ejection of about 50 solar masses of helium with a kinetic energy of about 2 x 10 exp 52 ergs, little intermediate mass elements, and about 0.2 solar mass of Ni-56, might satisfy the observational constraints. The astrophysical site of such an explosion is elusive although a massive star that leaves behind a massive black hole is a possibility. Some problems that make this scenario unappealing are discussed.

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