Astrophysical: Techniques

  • 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 CO emission lines in the dayside atmospheres of WASP-33b and WASP-189b with GIANO
    Ultra-hot Jupiters (UHJs) are expected to possess temperature inversion layers in their dayside atmospheres. Recent thermal emission observations have...
  • Publication
    Detection of Fe and evidence for TiO in the dayside emission spectrum of WASP-33b
    Context. Theoretical studies predict the presence of thermal inversions in the atmosphere of highly irradiated gas giant planets. Recent observations have...
  • Publication
    Detection of Fe and Ti on the dayside of the ultrahot Jupiter MASCARA-1b with CARMENES
    Ultrahot Jupiters are a type of gaseous exoplanet that orbit extremely close to their host star, resulting in significantly high equilibrium temperatures. In...