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Titolo: Is KPD 1930+2752 a good candidate type Ia supernova progenitor?
Autore: Ergma, E; Fedorova, AV; Yungelson, LR;
- Indirizzi:
- Univ Tartu, Dept Phys, EE-50090 Tartu, Estonia Univ Tartu Tartu Estonia EE-50090 tu, Dept Phys, EE-50090 Tartu, Estonia Univ Helsinki Observ, Helsinki 00014, Finland Univ Helsinki Observ Helsinki Finland 00014 erv, Helsinki 00014, Finland Russian Acad Sci, Inst Astron, Moscow 109017, Russia Russian Acad Sci Moscow Russia 109017 Inst Astron, Moscow 109017, Russia Univ Amsterdam, Astron Inst Anton Pannekoek, NL-1098 SJ Amsterdam, Netherlands Univ Amsterdam Amsterdam Netherlands NL-1098 SJ J Amsterdam, Netherlands
- Titolo Testata:
- ASTRONOMY & ASTROPHYSICS
fascicolo: 1,
volume: 376,
anno: 2001,
pagine: L9 - L12
- SICI:
- 1432-0746(200109)376:1<L9:IK1AGC>2.0.ZU;2-8
- Fonte:
- ISI
- Lingua:
- ENG
- Soggetto:
- DA WHITE-DWARFS; MASS-TRANSFER; STARS; BINARY; OPACITIES; ORIGIN; STATE;
- Keywords:
- stars : evolution; stars : KPD 1930+2752; stars : SNe Ia; binaries : evolution;
- Tipo documento:
- Article
- Natura:
- Periodico
- Settore Disciplinare:
- Physical, Chemical & Earth Sciences
- Citazioni:
- 35
- Recensione:
- Indirizzi per estratti:
- Indirizzo: Ergma, E Univ Tartu, Dept Phys, Ulikooli 18, EE-50090 Tartu, Estonia Univ Tartu Ulikooli 18 Tartu Estonia EE-50090 090 Tartu, Estonia
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- Citazione:
- E. Ergma et al., "Is KPD 1930+2752 a good candidate type Ia supernova progenitor?", ASTRON ASTR, 376(1), 2001, pp. L9-L12
Abstract
We investigate the evolution of a binary system which initially has an orbital period of 2(h)17(m) and contains a 0.5 M. helium star with a white dwarf companion of 0.97 M., similar to the suggested SN Ia candidate progenitor KPD 1930+2752. We show that the helium star completes core helium burningand becomes a white dwarf before the components merge. The most probable outcome of the merger of the components is the formation of a massive white dwarf, despite the fact that initially the total mass of the system is above the Chandrasekhar mass.
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Documento generato il 22/05/13 alle ore 05:04:30