Astronomy and Astrophysics · 2006 · 127 citations · 40 references
Natural SciencesAstronomyPhysicsAstrophysicsNuclear PhysicsStellar AstronomyBinary Star SystemsMassive StarsStellar EvolutionSupernova ProgenitorsWhite DwarfsBinary Population SynthesisBinary White DwarfsChandrasekhar Mass LimitProgenitor Mass EstimatesStellar MassesType Ia Supernova ProgenitorsType Ia SupernovaeWhite Dwarf Progenitors
Context.The nature of the progenitors of type Ia supernovae is still under debate. KPD 1930+2752 is one of the best SN Ia progenitor candidates known today. The object is a double degenerate system consisting of a subluminous B star (sdB) and a massive white dwarf (WD). Maxted et al. ([CITE]) conclude that the system mass exceeds the Chandrasekhar mass. This conclusion, however, rests on the assumption that the sdB mass is . However, recent binary population synthesis calculations suggest that the mass of an sdB star may range from to more than .
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Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
Adam G. Riess, A. V. Filippenko, P. Challis et al. · The Astronomical Journal · 1998 · 19.5K citations · Full text
Natural Sciences, Astronomy, Physics +14
Measurements of Ω and Λ from 42 High‐Redshift Supernovae
S. Perlmutter, G. Aldering, G. Goldhaber et al. · The Astrophysical Journal · 1999 · 17.9K citations · Full text
Natural Sciences, Astronomy, Physics +13