Talk type: Stars

  • Charla
    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...
  • Charla
    The Chemistry of the First Stars-Carbon in the Early Universe
    The very metal-poor (VMP; [Fe/H] < –2.0) and extremely metal-poor (EMP; [Fe/H] < –3.0) stars provide a direct view of Galactic chemical and dynamical evolution...
  • Charla
    The CoRoT satellite and its surprising exoplanets
    Up to now more than 400 extrasolar planets have been discovered, about 60 of them are transiting. Transiting extra-solar planets are particularly interesting...
  • Charla
    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...
  • Charla
    The discovery of a supernova type Ia progenitor at the heart of a planetary nebula
    I will report on the results of our paper published in Nature this week, outlining the discovery of a super-Chandrasekhar double-degenerate binary system at the...
  • Charla
    The distribution of gas and star formation in M81
    In this talk I will present the first complete 12CO J=3-2 map of M81, observed as part of the Nearby Galaxies Legacy Survey. We have detected nine regions of...
  • Charla
    The evolution of massive contact binaries: model predictions for the Magellanic Clouds and the Milky Way
    The majority of massive stars are born in close binary systems with orbital periods of a few days. At some point during their core-hydrogen burning phase, both...
  • Charla
    The Evolution of Massive Stars towards their Death: Rotation, Binarity and Mergers.
    Although they are rare and short-lived, massive stars play a major role in Universe. With their large luminosities, strong stellar winds and spectacular...
  • Charla
    The fate of ionizing radiation from massive stars in star-forming galaxies
    The fate of ionizing radiation from massive stars has fundamental consequences on scales ranging from the physics of circumstellar disks to the ionization state...