Journal: Astronomy and Astrophysics

  • Publication
    Search for new Galactic Wolf–Rayet stars using Gaia DR3: I. Candidate selection and the follow-up of the bright sample
    Context. Gaia DR3, released in June 2022, included low-resolution XP spectra that have been used for the classification of various types of emission-line...
  • Publication
    Search for photospheric footpoints of quiet Sun transition region loops
    Context: The footpoints of quiet Sun Transition Region (TR) loops do not seem to coincide with the photospheric magnetic structures appearing in traditional low...
  • Publication
    Search for planets around stars with wide brown dwarfs
    Aims: This work aims to better understand the role of wide brown dwarf companions in planetary systems. Methods: We obtained high-resolution spectra of six...
  • Publication
    Search for radial velocity variations in eight M-dwarfs with NIRSPEC/Keck II
    Context. Radial velocity (RV) measurements from near-infrared spectra have become a potentially powerful tool to search for planets around cool stars and sub...
  • Publication
    Search for rings and satellites around the exoplanet CoRoT-9b using Spitzer photometry
    Using Spitzer photometry at 4.5 microns, we search for rings and satellites around the long period transiting planet CoRoT-9b. We observed two transits in 2010...
  • Publication
    Search for surface magnetic fields in Mira stars. First detection in χ Cygni
    Context. So far, surface magnetic fields have never been detected on Mira stars. Only recently have the spectropolarimetric capabilities of measuring it via the...
  • Publication
    Search for the sub-stellar lithium depletion boundary in the open star cluster Coma Berenices
    Aims: We mainly aim to search for the lithium depletion boundary (LDB) among the sub-stellar population of the open star cluster Coma Berenices. Methods: Since...
  • Publication
    Search for torsional oscillations in isolated sunspots
    In this work we seek evidence for global torsional oscillations in alpha sunspots. We have used long time series of continuum intensity and magnetic field...
  • Publication
    Search for VHE gamma-ray emission from Geminga pulsar and nebula with the MAGIC telescopes
    The Geminga pulsar, one of the brighest gamma-ray sources, is a promising candidate for emission of very-high-energy (VHE > 100 GeV) pulsed gamma rays. Also...