INVESTIGADORES
MILLER BERTOLAMI Marcelo Miguel
artículos
Título:
Letter: The formation of DA white dwarfs with thin hydrogen envelopes.
Autor/es:
L. G. ALTHAUS; M. M. MILLER BERTOLAMI; A. H. CORSICO; E. GARCIA-BERRO; P. GIL-PONS
Revista:
ASTRONOMY AND ASTROPHYSICS
Editorial:
EDP Sciences
Referencias:
Lugar: Paris; Año: 2005 vol. 440 p. 1 - 4
ISSN:
0004-6361
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~Mȯ 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~Mȯ in agreement with asteroseismological inferences for some ZZ Ceti stars.
