Scenarios for Type Ia Supernovae

摘要: Until about a decade ago, the most commonly used classification scheme for supernovae hinged on whether hydrogen was prominent in spectrum (type II = SNeII) or apparently absent I SNeI). It noted that, early type galaxies, SNeII tended to occur spiral arms while SNeI were more uniformly distributed across disk, and elliptical absent. This led suspicion that derive from massive stars young population low mass an old population. Hoyle Fowler (1960) implicated collapse initiated by phase transition of iron peak nuclei into alpha particles fuel-exhausted core star as root cause phenomenon explosive ignition light nuclear fuel degenerate phenomenon.