Astrophysical: Stellar rotation

  • Publication
    Rotation of Solar Analogs Crossmatching Kepler and Gaia DR2
    A major obstacle to interpreting the rotation period distribution for main-sequence stars from Kepler mission data has been the lack of a precise evolutionary...
  • Talk
    Rotational velocities in Galactic OB stars: the Fourier transform revolution
    The application of the Fourier transform (FT) technique to high resolution spectra of OB-type stars has challenged our previous knowledge about stellar rotation...
  • Publication
    Spinning up the Surface: Evidence for Planetary Engulfment or Unexpected Angular Momentum Transport?
    In this paper, we report the potential detection of a nonmonotonic radial rotation profile in a low-mass lower-luminosity giant star. For most low- and...
  • 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...
  • Publication
    Surface Rotation and Photometric Activity for Kepler Targets. II. G and F Main-sequence Stars and Cool Subgiant Stars
    Dark magnetic spots crossing the stellar disk lead to quasiperiodic brightness variations, which allow us to constrain stellar surface rotation and photometric...
  • Publication
    TESS Hunt for Young and Maturing Exoplanets (THYME). VII. Membership, Rotation, and Lithium in the Young Cluster Group-X and a New Young Exoplanet
    The public, all-sky surveys Gaia and TESS provide the ability to identify new young associations and determine their ages. These associations enable study of...
  • Talk
    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...
  • Publication
    The Evolution of Rotation and Magnetic Activity in 94 Aqr Aa from Asteroseismology with TESS
    Most previous efforts to calibrate how rotation and magnetic activity depend on stellar age and mass have relied on observations of clusters, where isochrones...