Abstract
view Abstract Citations (253) References (120) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Models for Type I Supernova. I. Detonations in White Dwarfs Woosley, S. E. ; Taam, R. E. ; Weaver, T. A. Abstract In a series of papers, the properties of white dwarfs provoked into nuclear instability by accretion will be explored. The results bear many close similarities to the observed properties of Type I supernovae, especially their energetics, light curves, nucleosynthesis, and spectra. In this paper a class of "detonating white dwarfs" is explored. The final evolution of carbon-oxygen white dwarfs in binary systems undergoing mass exchange at rates in the range 10-9 to 10-8M_sun;yr-1 is considered. Three models are constructed having initial carbon-oxygen core masses 0.5, 0.8, and 1.2 M_sun; and accreting helium at rates of 10-8, 2×10-9, and 10-9M_sun;yr-1, respectively. In all cases continued evolution leads to the accumulation of a thick helium layer surrounding the core, degenerate helium ignition, detonation and mass ejection. Detailed isotopic nucleosynthesis has also been computed for these models and implications for Galactic chemical evolution and γ-line astronomy are discussed. At present, the class of detonating models does not agree well with spectroscopic constraints upon common Type I events. Publication: The Astrophysical Journal Pub Date: February 1986 DOI: 10.1086/163926 Bibcode: 1986ApJ...301..601W Keywords: Binary Stars; Nuclear Fusion; Stellar Evolution; Stellar Physics; Supernovae; White Dwarf Stars; Density Distribution; Detonation; Hydrodynamics; Light Curve; Stellar Envelopes; Stellar Gravitation; Stellar Luminosity; Stellar Mass Accretion; Stellar Models; Stellar Oscillations; Astrophysics; GAMMA RAYS: GENERAL; NUCLEOSYNTHESIS; STARS: BINARIES; STARS: INTERIORS; STARS: SUPERNOVAE; STARS: WHITE DWARFS full text sources ADS | data products SIMBAD (2)
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