Astrofísicas: Evolución estelar

  • Charla
    The complex Milky Way history
    In this seminar I will focus on how the avalanche of new data changes our views on how our Galaxy formed and evolved. Precise astrometric, spectroscopic...
  • Publicación
    The early nucleosynthesis of O and Fe
    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...
  • Charla
    The emergence of the Milky Way: Latest results from Galactic Archaeology
    The previous years have witnessed a big leap forward in our understanding of the Milky Way. Thanks to the highly accurate astrometry and photometry provided by...
  • Publicación
    The evolution of a supernova remnant in a strongly magnetized interstellar medium
    Several aspects of the evolution of an SNR into a low-beta ISM are investigated. The presence of a strong magnetic field in the unperturbed ISM is found to have...
  • Publicación
    The Evolution of Rotation and Magnetic Activity in 94 Aqr Aa from Asteroseismology with TESS
    Most previous efforts to calibrate how rotation and magnetic activity depend on stellar age and mass have relied on observations of clusters, where isochrones...
  • Publicación
    The fundamental parameters of the central stars of eight WR ring nebulae.
    The authors describe work that has recently been completed on deriving the fundamental parameters of eight WR stars through the photoionization modelling of...
  • Publicación
    The galactic globular cluster system - Constraints from Synthetic Horizontal Branches
    Synthetic horizontal branches, constructed on the basis of Sweigart and Gross (1976) horizontal branch star models and of the recently revised theoretical...
  • Publicación
    The Galactic globular cluster system - Theoretical constraints for alpha-enhanced compositions
    This paper discusses synthetic horizontal branches constructed from a grid of horizontal-branch (HB) evolutionary tracks with the alpha-elements enhanced by a...
  • Publicación
    The GW Vir Instability Strip in Light of New Observations of PG 1159 Stars: Discovery of Pulsations in the Central Star of A72 and Variability of RX J0122.9-7521
    We present the results of new time-series photometric observations of 29 pre-white dwarf stars of PG 1159 spectral type, carried out in the years 2014-2022. For...