Astrofísicas: Evolución estelar

  • Charla
    Asteroseismology in the Gaia Era: A New View of the Milky Way
    Time-domain space missions have revolutionized our understanding of stellar physics and stellar populations. Virtually all evolved stars can be detected as...
  • Charla
    Astrophysical Parameters in Gaia DR3
    Gaia Data Release 3 (13 June 2022) contains astrophysical parameters for up to 1.5 billion sources derived from the low resolution BP and RP prism spectra, the...
  • Publicación
    Asymptotic giant branch stars in NGC 6822: Probes of star formation history
    About 500 asymptotic giant branch (AGB) stars have been resolved and photometrically measured in the Local Group (LG) dwarf irregular galaxy NGC 6822. They draw...
  • Publicación
    BACCHUS Analysis of Weak Lines in APOGEE Spectra (BAWLAS)
    Elements with weak and blended spectral features in stellar spectra are challenging to measure and require specialized analysis methods to precisely measure...
  • Charla
    Binary stars in stellar population synthesis models and the UV upturn in early type galaxies.
    Many stars are observed to belong to multiple systems. Interactions between binary stars may change the evolutionary track of a star, creating atypical stars...
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    Blue stragglers - A search for binaries in the infrared
    Infrared photometry in the J, H and K bands, performed on a sample of 33 blue stragglers (BS) belonging to 8 open clusters is presented. This photometry has...
  • Publicación
    Blue stragglers and the binary hypothesis
    An observational test of the binary hypothesis for the origin of blue straggler stars is conducted by searching for radial velocity variables among 30 blue...
  • Publicación
    Blue stragglers in open clusters - A test of the binary hypothesis
    A search for binaries among 17 blue stragglers in five galactic clusters, NGC 7789, 6633, 6819, 6939, and M 67, has been performed using measurements of radial...
  • Publicación
    Boron Abundances in Early B Dwarfs of the Galactic Open Cluster NGC 3293
    New boron abundances or upper limits have been determined for eight early B stars in the young Galactic open cluster NGC 3293, using UV spectra obtained by the...