Astrophysical: Techniques

  • Publication
    Possible ring material around centaur (2060) Chiron
    We propose that several short-duration events observed in past stellar occultations by Chiron were produced by ring material. Some similarities between these...
  • Publication
    Post maximum light and late time optical imaging polarimetry of type I superluminous supernova 2020znr
    Optical imaging polarimetry was conducted on the hydrogen poor superluminous supernova 2020znr during three phases after maximum light (≍ +34 d, +288 d, and...
  • Publication
    Powerful mechanical-driven outflows in the central parsecs of the low-luminosity active galactic nucleus ESO 428-G14
    Low-luminosity Active Galactic Nuclei (LLAGNs) are characterized for low-radiative efficiency, much less than one percent of their Eddington limit. Nevertheless...
  • Publication
    Pre-main sequence spectroscopic binaries suitable for VLTI observations
    Context: A severe problem for research in star-formation is that the masses of young stars are almost always estimated from evolutionary tracks alone. Since the...
  • Publication
    Pre-perihelion monitoring of interstellar comet 2I/Borisov
    The discovery of interstellar comet 2I/Borisov offered the unique opportunity to obtain a detailed analysis of an object coming from another planetary system...
  • Publication
    Precise characterisation of HD 15337 with CHEOPS: A laboratory for planet formation and evolution
    Context. The HD 15337 (TIC 120896927, TOI-402) system was observed by the Transiting Exoplanet Survey Satellite (TESS), revealing the presence of two short...
  • Publication
    Precise mass and radius of a transiting super-Earth planet orbiting the M dwarf TOI-1235: a planet in the radius gap?
    We report the confirmation of a transiting planet around the bright weakly active M0.5 V star TOI-1235 (TYC 4384-1735-1, V ≈ 11.5 mag), whose transit signal was...
  • Publication
    Precise mass determination for the keystone sub-Neptune planet transiting the mid-type M dwarf G 9-40
    Context. Despite being a prominent subset of the exoplanet population discovered in the past three decades, the nature and provenance of sub-Neptune-sized...
  • Publication
    Precise radial velocities of giant stars. XIII. A second Jupiter orbiting in 4:3 resonance in the 7 CMa system
    We report the discovery of a second planet orbiting the K giant star 7 CMa based on 166 high-precision radial velocities obtained with Lick, HARPS, UCLES, and...