27 citations · 73 across the 3 of their papers we have counts for
3 papers
On the possible existence of short-period g-mode instabilities powered by nuclear burning shells in post-AGB H-deficient (PG1159-type) stars
A. H. Córsico, L. G. Althaus, M. M. Miller Bertolami +2
We present a pulsational stability analysis of hot post-AGB H-deficient pre-white dwarf stars with active He-burning shells. The stellar models employed are state-of-the-art equili…
On the formation of hot DQ white dwarfs
L. G. Althaus, E. García-Berro, A. H. Córsico +2
We present the first full evolutionary calculations aimed at exploring the origin of hot DQ white dwarfs. These calculations consistently cover the whole evolution from the born-ag…
Evidence of thin helium envelopes in PG1159 stars
L. G. Althaus, A. H. Córsico, M. M. Miller Bertolami +2
We present evidence that PG1159 stars could harbour He--rich envelopes substantially thinner than those predicted by current evolutionary models with current estimates of mass loss…