Models for Type I supernova. I - Detonations in white dwarfs

Details Models for Type I supernova. I - Detonations in white dwarfs Models for Type I supernova. I - Detonations in white dwarfs

Feb 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...301..601w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 301, Feb. 15, 1986, p. 601-623.

Physics

149

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

Scientific paper

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.

Affiliated with

Also associated with

No associations

Rating

Models for Type I supernova. I - Detonations in white dwarfs does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Models for Type I supernova. I - Detonations in white dwarfs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Models for Type I supernova. I - Detonations in white dwarfs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1675008