Abstract
view Abstract Citations (58) References (41) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Helium shell flashes and evolution of accreting white dwarfs Fujimoto, M. Y. ; Sugimoto, D. Abstract The evolution of accreting white dwarfs is investigated from the onset of accretion through the helium shell flash. Properties of the helium shell flashes are studied by means of a generalized theory of shell flash and by numerical computations, and it is found that the shell flash grows up to the strength of a supernova explosion when the mass of the helium zone is large enough on a massive white dwarf. Although accretion onto a hot white dwarf causes a weaker shell flash than those onto cool ones, a strong tendency exists for the strength to be determined mainly by the accretion rate. For fast accretion, the shell flashes are weak and triggered recurrently, while for slow accretion the helium shell flash, once triggered, develops into a detonation supernova. Publication: The Astrophysical Journal Pub Date: June 1982 DOI: 10.1086/159988 Bibcode: 1982ApJ...257..291F Keywords: Flare Stars; Helium; Nuclear Fusion; Stellar Envelopes; Stellar Evolution; White Dwarf Stars; Helium Hydrogen Atmospheres; Interstellar Gas; Stellar Mass Accretion; Stellar Temperature; Supernovae; Astrophysics full text sources ADS |
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