Astrophysical: Techniques

  • Publication
    The MOPYS project: A survey of 70 planets in search of extended He I and H atmospheres: No evidence of enhanced evaporation in young planets
    During the first billion years of their life, exoplanet atmospheres are modified by different atmospheric escape phenomena that can strongly affect the shape...
  • Publication
    The most recent burst of star formation in the massive elliptical galaxy NGC 1052
    High spatial resolution near-infrared (NIR) images of the central 24 × 24 arcsec2 (˜2 × 2 kpc2) of the elliptical galaxy NGC 1052 reveal a total of 25 compact...
  • Publication
    The multichord stellar occultation on 2019 October 22 by the trans-Neptunian object (84922) 2003 VS<SUB>2</SUB>
    Context. Stellar occultations have become one of the best techniques to gather information about the physical properties of trans-Neptunian objects (TNOs)...
  • Publication
    The near-infrared Ca II triplet as a metallicity indicator - II. Extension to extremely metal-poor metallicity regimes
    We extend our previous calibration of the infrared Ca II triplet (CaT) as a metallicity indicator to the metal-poor regime by including observations of 55 field...
  • Publication
    The non-peculiar velocity dispersion profile of the stellar system ω Centauri
    We present the results of a survey of radial velocities over a wide region extending from r ~= 10 out to 80 arcmin (~1.5 tidal radii) within the massive star...
  • Publication
    The nuclear and extended mid-infrared emission of Seyfert galaxies
    We present subarcsecond resolution mid-infrared (MIR) images obtained with 8-10 m-class ground-based telescopes of a complete volume-limited (DL 40 Mpc) sample...
  • Publication
    The nuclear dust lane of Circinus: collimation without a torus
    In some AGN, nuclear dust lanes connected to kpc-scale dust structures provide all the extinction required to obscure the nucleus, challenging the role of the...
  • Publication
    The O3N2 and N2 abundance indicators revisited: improved calibrations based on CALIFA and Te-based literature data
    The use of integral field spectroscopy is since recently allowing to measure the emission line fluxes of an increasingly large number of star-forming galaxies...
  • Publication
    The obliquity and atmosphere of the hot Jupiter WASP-122b (KELT-14b) with ESPRESSO: An aligned orbit and no sign of atomic or molecular absorption
    Thanks to their short orbital periods and hot extended atmospheres, hot Jupiters are ideal candidates for atmosphere studies with high- resolution spectroscopy...