Astrofísicas: Evolución estelar

  • Charla
    Supergiants with an Interesting Past
    Exciting things may have happened sometimes to the stars we see in the sky today. For example, Betelgeuse, also known as Alpha-Ori, an M-type red supergiant...
  • Publicación
    Symbiotic Stars in the Era of Modern Ground- and Space-Based Surveys
    Symbiotic stars, interacting binaries composed of a cool giant and a hot compact companion, exhibit complex variability across the electromagnetic spectrum...
  • Charla
    Testing stellar evolutionary theory with asteroseismology and/in binary stars
    The theory of stellar evolution is well developed over the past decades, and in particular the predictions of one dimensional numerical models have passed basic...
  • Publicación
    The age decay of stellar magnetic activity in MS field solar-type stars
    The age decay of two indicators of the stellar magnetic activity (λ2800 Mg II emission flux and λ10830 He I equivalent width) have been studied for field solar...
  • Publicación
    The APOGEE Library of Infrared SSP Templates (A-LIST): High-resolution Simple Stellar Population Spectral Models in the H Band
    Integrated light spectroscopy from galaxies can be used to study the stellar populations that cannot be resolved into individual stars. This analysis relies on...
  • Publicación
    The Carbon Star DY Persei May Be a Cool R Coronae Borealis Variable
    Optical and near-IR photometry suggests that the carbon star DY Persei exhibits fadings similar to those of R Coronae Borealis (RCB) variables. Photometric...
  • Publicación
    The cataclysmic variable SS Cygni
    A general panorama of SS Cygni is presented. The paper first describes the CV cataclysmic variables and the current theories which attempt to describe their...
  • 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...