Astrophysical: Techniques

  • Publication
    A PCA approach to stellar effective temperatures
    Context. The derivation of the effective temperature of a star is a critical first step in a detailed spectroscopic analysis. Spectroscopic methods suffer from...
  • Publication
    A Photometric Diagnostic to Aid in the Identification of Transiting Extrasolar Planets
    One of the obstacles in the search for exoplanets via transits is the large number of candidates that must be followed up, few of which ultimately prove to be...
  • Publication
    A photometric study of the hot exoplanet WASP-19b
    Context. The sample of hot Jupiters that have been studied in great detail is still growing. In particular, when the planet transits its host star, it is...
  • Publication
    A physically motivated definition for the size of galaxies in an era of ultradeep imaging
    Present-day multiwavelength deep imaging surveys allow to characterize the outskirts of galaxies with unprecedented precision. Taking advantage of this...
  • Publication
    A planetary system with two transiting mini-Neptunes near the radius valley transition around the bright M dwarf TOI-776
    We report the discovery and characterization of two transiting planets around the bright M1 V star LP 961-53 (TOI-776, J = 8.5 mag, M = 0.54 ± 0.03 M ☉)...
  • Publication
    A Possible Third Component in the L Dwarf Binary System DENIS-P J020529.0-115925 Discovered with the Hubble Space Telescope
    We present results showing that the multiple system DENIS-P J020529.0-115925 is likely to be a triple system of very low mass stars and brown dwarfs. The...
  • Publication
    A precise architecture characterization of the π Mensae planetary system★
    Context. The bright star π Men was chosen as the first target for a radial velocity follow-up to test the performance of ESPRESSO, the new high-resolution...
  • Publication
    A Pristine-UNIONS view on the Galaxy: Kinematics of the distant spur feature of the Sagittarius stream traced by blue horizontal branch stars
    Context. Providing a detailed picture of the Sagittarius stream offers important constraints on the build-up of the Galactic halo as well as its gravitational...
  • Publication
    A proposal for a low instrumental polarization coude telescope. II. The German Gregory-Coude Telescope at the Observatorio del Teide.
    We have put into practice the technique to minimize the instrumental polarization (IP) of coude telescopes proposed by Martinez Pillet & Sanchez Almeida (1991)...