The early nucleosynthesis of O and Fe

Bibcode
1990Ap&SS.170..361A
DOI
10.1007/BF00652693
Abia, C.; Canal, R.; Isern, J.
Referencia bibliográfica

(IAU, European Regional Astronomy Meeting, 11th, La Laguna, Spain, July 3-8, 1989) Astrophysics and Space Science (ISSN 0004-640X), vol. 170, no. 1-2, Aug. 1990, p. 361-365.

Fecha de publicación:
8
1990
Número de autores
3
Número de autores del IAC
0
Número de citas
1
Número de citas referidas
1
Descripción
The new observational O/Fe vs Fe/H relationship in halo dwarfs is analyzed in terms of a model of chemical evolution for the solar neighborhood. The role of nucleosynthesis prescriptions for SN II and SN I (both Ia and Ib) is analyzed. It is shown that, by adopting iron yields for SN II according to the observations of SN 1987A and by assuming double degenerate systems to be the progenitors of SN Ia and Wolf-Rayet stars to be the progenitors of SN Ib, it is possible to reproduce quite well the behavior of the O/Fe ratio for halo and disk stars. Nevertheless, best agreement is obtained when introducing in addition a variable IMF during the halo evolution.
Tipo
Sin árbitro
Evolución estelar
Ondas gravitacionales
Via Láctea
Formación estelar
Supernovas
Estrellas enanas blancas
Estrellas Wolf-Rayet

Te puede interesar

  • Sin árbitro
    The Multimodal Universe: 100 TB of Machine Learning Ready Astronomical Data
    We present the Multimodal Universe, a new framework collating over 100 TB of multimodal astronomical data for its first release, spanning images, spectra, time series, tabular and hyper-spectral data. This unified collection enables a wide variety of machine learning (ML) applications and research across astronomical domains. The dataset brings
    Angeloudi, Eirini et al.

    Fecha de publicación:

    12
    2024
    Bibcode
    2024RNAAS...8..301A
    Número de citas
    0
  • 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
    Local seeing analysis for the European Solar Telescope
    The European Solar Telescope (EST) will be built at the Observatorio del Roque de los Muchachos, a site known for its excellent atmospheric seeing conditions. The fundamental design of EST lies on two premises to improve the local seeing: placing the primary mirror as far as possible from the ground layer and using an open-air configuration. In
    Soler, M. et al.

    Fecha de publicación:

    8
    2024
    Bibcode
    2024SPIE13094E..5FS
    Número de citas
    0