Astrophysical: Techniques

  • Publication
    Detailed cool star flare morphology with CHEOPS and TESS (Corrigendum)
  • Publication
    Detailed cool star flare morphology with CHEOPS and TESS***
    Context. White-light stellar flares are proxies for some of the most energetic types of flares, but their triggering mechanism is still poorly understood. As...
  • Publication
    Detailed stellar activity analysis and modelling of GJ 832. Reassessment of the putative habitable zone planet GJ 832c
    Context. Gliese-832 (GJ 832) is an M2V star hosting a massive planet on a decade-long orbit, GJ 832b, discovered by radial velocity (RV). Later, a super Earth...
  • Publication
    Detecting photons with orbital angular momentum in extended astronomical objects: application to solar observations
    Context. The orbital angular momentum (OAM) of the photon is a property of light from astronomical objects that has not yet been measured. We propose a method...
  • Publication
    Detecting planets around very cool dwarfs at near infrared wavelengths with the radial velocity technique
    Context. Radial velocity monitoring of very cool dwarfs such as late M- and hot L-dwarfs has become a promising tool in the search for rocky planets as well as...
  • Publication
    Detection and characterization of an ultra-dense sub-Neptunian planet orbiting the Sun-like star K2-292
    We present the discovery and characterization of a new transiting planet from Campaign 17 of the Kepler extended mission K2. The planet K2-292 b is a warm sub...
  • Publication
    Detection of a high-velocity sodium feature on the ultra-hot Jupiter WASP-121 b
    Context. Ultra-hot Jupiters, with their high equilibrium temperatures and resolved spectral lines, have emerged as a perfect testbed for new analysis techniques...
  • Publication
    Detection of barium in the atmospheres of the ultra-hot gas giants WASP-76b and WASP-121b. Together with new detections of Co and Sr+ on WASP-121b
    Context. High-resolution spectroscopy studies of ultra-hot Jupiters have been key in our understanding of exoplanet atmospheres. Observing into the atmospheres...
  • Publication
    Detection of binary companions below the diffraction limit with lucky imaging
    Context. Binary stars are invaluable tools that can be used to precisely measure the fundamental properties of stars, to test stellar models, and further our...