Zobrazeno 1 - 8
of 8
pro vyhledávání: '"L G Althaus"'
Recently a new class of hot subluminous stars strongly enriched in C and O have been discovered (CO-sdOs). These stars show abundances very similar to those observed in PG1159 stars but at lower temperatures. Moreover, it has been recently suggested
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbb69a314b95820e754168138c3cb152
http://arxiv.org/abs/2202.05635
http://arxiv.org/abs/2202.05635
Autor:
A. H. Córsico, M. Uzundag, S. O. Kepler, L. G. Althaus, R. Silvotti, P. A. Bradley, A. S. Baran, D. Koester, K. J. Bell, A. D. Romero, J. J. Hermes, N. P. Gentile Fusillo
Publikováno v:
Astronomy & Astrophysics. 668:A161
Context. The TESS space mission has recently demonstrated its great potential to discover new pulsating white dwarf and pre-white dwarf stars, and to detect periodicities with high precision in already known white-dwarf pulsators. Aims. We report the
Autor:
O. G. Benvenuto, L. G. Althaus
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Universidad Nacional de La Plata
instacron:UNLP
We present detailed evolutionary calculations for carbon - oxygen - and helium - core white dwarf models with masses ranging from M = 0.1 to M = 1.2 M⊙ and for metallicities Z = 0.001 and Z = 0. The sequences cover a wide range of hydrogen envelope
Publikováno v:
AIP Conference Proceedings.
We propose an scenario for the formation of DA white dwarfs with very thin He‐buffers. For these stars we explore the possible ocurrence of diffusion‐induced CNO‐flashes in white dwarfs, during their early cooling stage. Then we calculate the c
Autor:
L. G. Althaus, A. H. Córsico, A. Bischoff-Kim, I. Renedo, E. García-Berro, M. M. Miller Bertolami, Klaus Werner, T. Rauch
Publikováno v:
AIP Conference Proceedings.
We present new white dwarf chemical profiles appropriate for pulsational studies of ZZ Ceti stars on the basis of full evolutionary calculations for both white dwarfs and progenitor stars. We perform adiabatic pulsation calculations, and find that th
Autor:
A. H. Córsico, L. G. Althaus
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Universidad Nacional de La Plata
instacron:UNLP
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
An adiabatic, nonradial pulsation study of GW Vir stars is presented. The pulsation calculations were based on PG 1159 evolutionary sequences with different stellar masses artificially derived from a full evolutionary sequence of 0.5895 M⊙ that has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c6e7505dcd50571db196f1eb8f075b5
http://arxiv.org/abs/astro-ph/0603736
http://arxiv.org/abs/astro-ph/0603736
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 336:1056-1056
Autor:
Alejandra D. Romero, A. H. Córsico, B. G. Castanheira, F. C. De Gerónimo, S. O. Kepler, D. Koester, A. Kawka, L. G. Althaus, J. J. Hermes, C. Bonato, A. Gianninas
Publikováno v:
Astrophysical Journal; 12/10/2017, Vol. 851 Issue 1, p1-1, 1p