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Precollapse evolution of accreting CO white dwarfs

  • Session 1 Stellar Structure and Evolution
  • Published:
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Abstract

We calculate how accretion affects the evolution of carbon-oxygen white dwarfs up to thermonuclear runaway. The influence of internal temperature (including the possibility of solidification) as well as that of other initial conditions (accretion rate, total mass) are taken into account. We examine in some detail the influence of the adopted pycnonuclear reaction rate and of the lattice impurities on the ignition conditions. The consequences of having a completely ordered C-O crystal instead of a disordered one are also analyzed.

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Authors and Affiliations

  1. Centre d'Estudis Avançats de Blanes, CSIC, Blanes, Girona, Spain

    M. Hernanz & J. Isern

  2. Department de Física de l'Atomosfera, Astronomia i Astrofisica, Universitat de Barcelona, Barcelona, Spain

    R. Canal & J. Labay

  3. Grup d'Astrofisica de la Societat Catalana de Física de l'Institut d'Estudis Catalans, Spain

    M. Hernanz, J. Isern, R. Canal & J. Labay

Authors
  1. M. Hernanz
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  2. J. Isern
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  3. R. Canal
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  4. J. Labay
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Hernanz, M., Isern, J., Canal, R. et al. Precollapse evolution of accreting CO white dwarfs. Astrophys Space Sci 169, 171–175 (1990). https://doi.org/10.1007/BF00640706

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  • DOI: https://doi.org/10.1007/BF00640706

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