Astrophysical: Stellar atmospheres

  • Publication
    Shock wave propagation in a magnetic flux tube
    The propagation of a shock wave in a magnetic flux tube is studied within the framework of the Brinkley-Kirkwood theory adapted to a radiating gas. Simplified...
  • Publication
    Solar and stellar photospheric abundances
    The determination of photospheric abundances in late-type stars from spectroscopic observations is a well-established field, built on solid theoretical...
  • Talk
    Sounding the treasure trove - Asteroseismology of red-giant stars and binaries systems
    Understanding stellar structure and evolution significantly impacts our understanding of the tight-knit evolution of galaxies and exoplanet systems. However...
  • Publication
    Spectral and radial velocity studies of 5 northern central stars of planetary nebulae
    Spectrograms of five bright northern central stars of planetary nebulae (CSPN) are compiled in order to provide spectral descriptions of these stars, with...
  • Publication
    Stellar atmospheres. Beyond classical models
    Not Available
  • Publication
    Stellar Atmospheric Parameters: The Four-Step Program and Gaia's Radial Velocity Spectrometer
    The determination of atmospheric parameters is the first and most fundamental step in the analysis of a stellar spectrum. Current and forthcoming surveys...
  • Publication
    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...
  • Publication
    The Emergence of Magnetic Field into Stellar Atmospheres
    The magnetic activity in the atmosphere of the Sun, possibly of most other magnetically active late-type stars, is a consequence of the emergence of magnetic...
  • Publication
    The He I D3 5876 A line as an activity and structural indicator in F-type Hyades stars
    The first results of a study of F-type MS stars using the He I D3 absorption feature at 5876 A as an indicator of stellar activity and structure are presented...