Probing the first hours in the life of SN 1987A

Journal Article · Thu Jun 01 04:00:00 EDT 1989 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/185457· OSTI ID:5667486

Fransson, C; Lundqvist, P ^[1]

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1. Stockholms Observatorium, Saltsjobaden (Sweden)

The observations of the narrow UV and optical emission lines of SN 1987A are modeled. The main properties of the observations are well reproduced by a shell ionized by the soft X-ray burst at the supernova shock breakout. These observations therefore provide constraints on the unobserved first hours of the supernova explosion. To explain the time evolution and fluxes of the lines, the peak radiation temperature of the supernova has to be between 400,000 K and 800,000 K, and the total number of ionizing photons above 100 eV about 10 to the 56th (about 2 x 10 to the 46th ergs). 21 refs.

• OSTI ID: 5667486
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 341; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONSTRAINTS
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
EMISSION SPECTRA
ERUPTIVE VARIABLE STARS
EXPLOSIONS
IONIZATION
IONIZING RADIATIONS
PHOTOIONIZATION
RADIATIONS
SOFT X RADIATION
SPECTRA
STARS
SUPERNOVAE
ULTRAVIOLET SPECTRA
VARIABLE STARS
VISIBLE SPECTRA
X RADIATION