Astrophysics and Space Science

, Volume 169, Issue 1–2, pp 25–29 | Cite as

Dynamical instability in accreting white dwarfs

  • D. García
  • J. Labay
  • R. Canal
  • J. Isern
Session 1 Stellar Structure and Evolution
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Abstract

We study the evolution of solid, CO white dwarfs after explosive carbon ignition at central densities around 1010 g cm−3 triggered by steady accretion in a close binary system, in order to elucidate whether these stars can collapse to form a neutron star. We show that as long as the velocity of the burning front remains below a critical value of 0.006cs (∼60 km s−1), gravitational collapse is the final fate. These calculations support the accretion-induced collapse (AIC) scenario for the origin of a fraction of low-mass X-ray binaries.

Keywords

Burning Explosive Binary System Neutron Star Gravitational Collapse 

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Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • D. García
    • 1
    • 3
  • J. Labay
    • 2
    • 3
  • R. Canal
    • 2
    • 3
  • J. Isern
    • 3
    • 4
  1. 1.Departament de Física i Enginyeria NuclearUniversitat Politècnica de CatalunyaSpain
  2. 2.Departament de Física de l'Atmosfera, Astronomía i AstrofisicaUniversitat de BarcelonaSpain
  3. 3.Grup d'Astrofísica, Societat Catalana de FísicaI.E.C.Spain
  4. 4.Centre d'Estudis AvançatsC.S.I.C.Spain

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