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Asteroseismological constraints on the pulsating planetary nebula nucleus (PG1159-type) RX J2117.1+3412
A. H. Córsico, L. G. Althaus, M. M. Miller Bertolami +1
We present asteroseismological inferences on RX J2117.1+3412, the hottest known pulsating PG1159 star. Our results are based on full PG1159 evolutionary models recently presented b…
New nonadiabatic pulsation computations on full PG1159 evolutionary models: the theoretical GW Vir instability strip revisited
A. H. Córsico, L. G. Althaus, M. M. Miller Bertolami
We reexamine the theoretical instability domain of pulsating PG1159 stars (GW Vir variables). We performed an extensive g-mode stability analysis on PG1159 evolutionary models with…
Full evolutionary models for PG1159 stars. Implications for the helium-rich O(He) stars
M. M. Miller Bertolami, L. G. Althaus
We present full evolutionary calculations appropriate to post-AGB PG1159 stars for a wide range of stellar masses. We take into account the complete evolutionary stages of PG1159 p…
Asteroseismic inferences on GW Vir variable stars in the frame of new PG 1159 evolutionary models
A. H. Córsico, L. G. Althaus
This submission has been removed by arXiv administrators because it is a duplicate of astro-ph/0603735.
Asteroseismic inferences on GW Vir variable stars in the frame of new PG 1159 evolutionary models
A. H. Córsico, L. G. Althaus
An adiabatic, nonradial pulsation study of GW Vir stars is presented. The pulsation calculations are based on PG1159 evolutionary sequences with different stellar massess artificia…
DQ white-dwarf stars with low C abundance: Possible progenitors
C. G. Scóccola, L. G. Althaus, A. M. Serenelli +2
The present paper focuses on the evolution of hydrogen-deficient white dwarfs with the aim of exploring the consequences of different initial envelope structures on the carbon abun…