Astrophysical: Early-type stars

  • Talk
    Discovery of Two Rare Highly-Magnetized B Stars in the APOGEE Survey
    The Apache Point Observatory Galactic Evolution Experiment (APOGEE) - one of the Sloan Digital Sky Survey III programs -- is using near-infrared spectra of ~100...
  • Talk
    IAU G5 -- The GALAH survey: science goals and highlights to date
    The field of Galactic archaeology has been very active in recent years, with a major influx of data from the Gaia satellite and large spectroscopic surveys. The...
  • Talk
    Probing the early Milky Way with the Pristine survey
    The lowest metallicity stars that still exist today represent a window into the early Universe. Studying these stars gives us a local avenue to guide our...
  • Publication
    Resolving the Circumstellar Environment of the Galactic B[e] Supergiant Star MWC 137.II. Nebular Kinematics and Stellar Variability
    The Galactic B[e] supergiant MWC 137 is surrounded by a large-scale optical nebula. To shed light on the physical conditions and kinematics of the nebula, we...
  • Talk
    Stellar seismology of gamma Dor pulsators in times of the CoRoT and Kepler satellite missions.
    Gamma Dor stars (M = 1.2-2.5 M⊙; spectral type A-F) are very interesting from an asteroseismic point of view. They show gravity modes, which are the only modes...
  • Talk
    The chemical composition of the Orion star forming region: stars, gas, and dust
    The Orion star forming region is an ideal laboratory for many astrophysical studies. In this talk I will present a study of the chemical composition of early B...
  • Talk
    The death and afterlife of massive stars
    Observations of supernovae and gamma-ray bursts show that massive stars end their lives with a wide variety of properties. For supernovae, mass loss plays a...
  • Publication
    The tip of the iceberg: the frequency content of the δ Sct star HD 50844 from CoRoT space photometry
    It has been suggested that the detection of a wealth of very low amplitude modes in δ Sct stars was only a matter of signal-to-noise ratio. Access to this...