C.D.S. - SIMBAD4 rel 1.7 - 2020.10.24CEST17:50:27

2001A&A...376L...9E - Astronomy and Astrophysics, volume 376, L9-12 (2001/9-2)

Is KPD 1930+2752 a good candidate type Ia supernova progenitor?


Abstract (from CDS):

We investigate the evolution of a binary system which initially has an orbital period of 2h17m and contains a 0.5M helium star with a white dwarf companion of 0.97M, similar to the suggested SNIa candidate progenitor KPD 1930+2752. We show that the helium star completes core helium burning and 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.

Abstract Copyright:

Journal keyword(s): stars: evolution - stars: individual: KPD 1930+2752 - stars: SNeIa - binaries: evolution

Simbad objects: 2

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Number of rows : 2

N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
1 V* IQ Cam HS* 04 26 06.8650071405 +54 28 17.100742176 14.21 14.86 14.66     sdB 56 0
2 KPD 1930+2752 HS* 19 32 14.8086352823 +27 58 35.444970697 12.80 13.75 13.82     sdB 145 0

    Equat.    Gal    SGal    Ecl

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