Instabilities and clumping in SN 1987A. I. Early evolution in two dimensions
Journal Article
·
· Astrophysical Journal; (USA)
- Arizona Univ., Tucson (USA) Max-Planck-Institut fuer Physik und Astrophysik, Garching (Germany, F.R.)
This paper presents new calculations of instabilities, mixing, and clumping in the ejecta of SN 1987A, which are an extension of calculations published of Arnett et al. (1989) and which make it possible to differentiate between physical and numerical effects. It is shown that perturbations of physically reasonable amplitude provide sufficient mixing and clumping to explain the earlier than expected observations of X-rays and gamma rays and the shape of the SN 1987A light curve. It is also shown that the degree of clumping also affects estimates of mass from modeling the light curves of SN Ib. 77 refs.
- OSTI ID:
- 5933616
- Journal Information:
- Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 367; ISSN ASJOA; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
BRIGHTNESS
ELECTROMAGNETIC RADIATION
ELEMENT ABUNDANCE
ERUPTIVE VARIABLE STARS
GALAXIES
GAMMA RADIATION
INSTABILITY
IONIZING RADIATIONS
MAGELLANIC CLOUDS
MASS
MASS TRANSFER
MATHEMATICAL MODELS
MIXING
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
SHOCK WAVES
STAR EVOLUTION
STAR MODELS
STARS
SUPERNOVAE
TWO-DIMENSIONAL CALCULATIONS
VARIABLE STARS
X RADIATION
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
BRIGHTNESS
ELECTROMAGNETIC RADIATION
ELEMENT ABUNDANCE
ERUPTIVE VARIABLE STARS
GALAXIES
GAMMA RADIATION
INSTABILITY
IONIZING RADIATIONS
MAGELLANIC CLOUDS
MASS
MASS TRANSFER
MATHEMATICAL MODELS
MIXING
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
SHOCK WAVES
STAR EVOLUTION
STAR MODELS
STARS
SUPERNOVAE
TWO-DIMENSIONAL CALCULATIONS
VARIABLE STARS
X RADIATION