Astrophysical: Stellar evolution

  • Publication
    Shocked excitation in the bipolar nebula CRL 618
    Intermediate-long-slit spectroscopy of the protoplanetary-nebula candidate CRL 618, obtained using an IPCS on the 2.5-m telescope at the Observatorio Roque de...
  • 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
    Spatially resolved spectroscopy of WR ring nebulae. I - NGC 2359 and RCW 78
    We report detailed spatially resolved spectroscopy of the WR nebulae NGC 2359 and RCW 78 surrounding the WN 5 HD 56925 and WN 8 HD 117688 stars. The aim of this...
  • Publication
    Spatially resolved spectroscopy of WR ring nebulae. III - New results and chemical properties of the sample
    The paper presents detailed high-spatial-resolution spectroscopy of seven WR ring nebulae, observed at several telescopes in both hemispheres. These are Anon...
  • Publication
    Spectral evolution of the He-Poor supernovae 1990U in NGC 7479 and 1991A in IC 2973
    We present the spectral evolution, from about one to six months after optical maximum, of two type Ic supernovae, 1990U in NGC 7479 and 1991A in IC 2973 (UGC...
  • Talk
    Stellar Rotation in the Gaia Era: Gyrochronology Under Inspection
    Rotation plays an important role in the life of stars and offers a potential diagnostic to infer their ages and that of their planets. This idea is known as...
  • Talk
    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...
  • Talk
    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...
  • Publication
    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...