93 citations · 302 across the 4 of their papers we have counts for
9 papers
Gravitational settling of 22Ne and white dwarf evolution
E. García--Berro, L. G. Althaus, A. H. Córsico +1
We study the effects of the sedimentation of the trace element 22Ne in the cooling of white dwarfs. In contrast with previous studies, which adopted a simplified treatment of the e…
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…
The formation and evolution of hydrogen-deficient post-AGB white dwarfs: the emerging chemical profile and the expectations for the PG1159-DB-DQ evolutionary connection
L. G. Althaus, A. M. Serenelli, J. A. Panei +3
This paper is designed to explore the formation and evolution of hydrogen-deficient post-AGB white dwarfs. To this end, we compute the complete evolution of an initially 2.7 M_sun…
Pulsations of massive ZZ Ceti stars with carbon/oxygen and oxygen/neon cores
A. H. Corsico, E. Garcia-Berro, L. G. Althaus +1
We explore the adiabatic pulsational properties of massive white dwarf stars with hydrogen-rich envelopes and oxygen/neon and carbon/oxygen cores. To this end, we compute the cooli…
The rate of period change in pulsating DB white dwarf stars
A. H. Corsico, L. G. Althaus
In this work, we present the theoretically expected rates of pulsation period change for V777 Her (DBV) variable stars. To this end we employ new evolutionary models representative…
New evolutionary models for massive ZZ Ceti stars. II. The effects of crystallization on their pulsational properties
A. H. Corsico, L. G. Althaus, M. H. Montgomery +2
We present in this work new pulsational calculations for improved carbon-oxygen DA white dwarf models suitable for the study of massive ZZ Ceti stars. The background models employe…