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arXiv:astro-ph/0309451 (astro-ph)
[Submitted on 16 Sep 2003]

Title:The Impact of the Chemical Stratification of White Dwarfs on the Classification of Classical Novae

Authors:Jordi Jose (1), Margarita Hernanz (2), Enrique Garcia-Berro (1), Pilar Gil-Pons (3). (1. Universitat Politecnica de Catalunya & Institut d'Estudis Espacials de Catalunya). (2. Institut de Ciencies de l'Espai (CSIC) & Institut d'Estudis Espacials de Catalunya). (3. Universitat Politecnica de Catalunya)
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Abstract: We analyse the impact of the initial abundances of the underlying white dwarf core on the nucleosynthesis accompanying classical nova outbursts, in the framework of hydrodynamic models of the explosion. Specifically, we take into account the chemical stratification of the white dwarf. It turns out that the presence of a thick CO-buffer on top of the ONe-rich core, as results from detailed calculations of previous evolution of the progenitor star, may lead to significant amounts of both 7Li and 26Al, after an outburst that, due to the lack of neon isotopes in the ejecta, would be misclassified as a non-neon nova (i.e., CO nova).
Comments: Accepted for publication in The Astrophysical Journal Letters
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:astro-ph/0309451
  (or arXiv:astro-ph/0309451v1 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/0309451
Journal reference: Astrophys.J.597:L41-L44,2003
Related DOI: https://doi.org/10.1086/379782

Submission history

From: Jordi Jose [view email]
[v1] Tue, 16 Sep 2003 16:36:37 UTC (25 KB)
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