Artículos de revistas
The formation of DA white dwarfs with thin hydrogen envelopes.
Fecha
2005-12Registro en:
Althaus, Leandro Gabriel; Miller Bertolami, Marcelo Miguel; Corsico, Alejandro Hugo; García Berro, Enrique; Gil Pons, P.; The formation of DA white dwarfs with thin hydrogen envelopes.; EDP Sciences; Astronomy and Astrophysics; 440; 12-2005; 1-4
0004-6361
CONICET Digital
CONICET
Autor
Althaus, Leandro Gabriel
Miller Bertolami, Marcelo Miguel
Corsico, Alejandro Hugo
García Berro, Enrique
Gil Pons, P.
Resumen
We study the formation and evolution of DA white dwarfs, the progenitors of which have experienced a late thermal pulse (LTP) shortly after the departure from the thermally pulsing AGB. To this end, we compute the complete evolution of an initially 2.7 M star all the way from the zero-age main sequence to the white dwarf stage. We find that most of the original H-rich material of the post-AGB remnant is burnt during the post-LTP evolution, with the result that, at entering its white dwarf cooling track, the remaining H envelope becomes 10−6 M in agreement with asteroseismological inferences for some ZZ Ceti stars.