Formation and Evolution of Hydrogen-Deficient post-AGB White Dwarfs

Bibcode
2005ASPC..334...61A
Althaus, L.; Panei, J.; Córsico, A.; García-Berro, E.; Scóccola, C.
Referencia bibliográfica

14th European Workshop on White Dwarfs, ASP Conference Series, Vol. 334 Proceedings of a meeting held at Kiel, July 19-23, 2004. Edited by D. Koester and S. Moehler. San Francisco: Astronomical Society of the Pacific, 2005, p.61

Fecha de publicación:
7
2005
Número de autores
5
Número de autores del IAC
0
Número de citas
0
Número de citas referidas
0
Descripción
We explore the formation and evolution of hydrogen-deficient post-AGB white dwarf stars by computing the complete evolution of an initially 2.7 Msun star from the ZAMS through the thermally pulsing and mass-loss phases, the born-again stage to the white dwarf stage. A time-dependent scheme for the simultaneous treatment of abundance changes caused by nuclear reactions, diffusive overshooting, salt fingers and convection is considered. In addition, microscopic element diffusion is taken into account during the white dwarf evolution. Relevant aspects for PG 1159 stars and DB evolution are studied in the frame of these new evolutionary models. The scope of the calculations is extended to the domain of the helium-rich, carbon-contaminated DQ white dwarfs with the aim of exploring the plausibility of the evolutionary connection PG 1159-DB-DQ.
Tipo
Sin árbitro

Te puede interesar

  • Sin árbitro
    Study of basaltic asteroids through their phase curves
    Introduction Classified as type-V, the basaltic asteroids of the Main Belt (MB), for the most part, are connected to Vesta's dynamic family. However, since the discovery of the V-type asteroid (1459) Magnya in the outer MB, several new asteroids have been found in different regions, including V-types from inner regions not belonging to the Vesta
    Arcoverde, Plicida et al.

    Fecha de publicación:

    9
    2024
    Bibcode
    2024EPSC...17..999A
    Número de citas
    0
  • Sin árbitro
    Conceptual design of the infrared integral field spectropolarimeter for the European Solar Telescope
    The European Solar Telescope (EST) will be Europe's most ambitious ground-based infrastructure in solar physics. It will have a primary mirror with a diameter of 4.2m, which will make it the largest in Europe, and of identical aperture as the largest solar telescope available worldwide, namely the Daniel K. Inouye Telescope (DKIST) installed at the
    Quintero Noda, C. et al.

    Fecha de publicación:

    8
    2024
    Bibcode
    2024SPIE13094E..2CQ
    Número de citas
    0
  • Sin árbitro
    Detector upgrade in EMIR@GTC: on-sky performances
    EMIR was shipped to the GTC on May 2016 and had its first light on June 2016. Since the beginning, the EMIR performances have been severely hampered by the many instabilities in the infrared detector, a 2048x2048 Hawaii2, built with the old original technology of the Teledyne Hawaii series. Despite of this, the instrument has proven to be powerful
    Garzón, Francisco et al.

    Fecha de publicación:

    7
    2024
    Bibcode
    2024SPIE13096E..27G
    Número de citas
    0