Journal: Astronomy and Astrophysics

  • Publication
    A mid-infrared study of very low mass stars and brown dwarfs in Upper Scorpius
    Context: To investigate the formation of sub-stellar objects, we observed a sample of ultracool dwarf members of the Upper Scorpius OB association. Aims: The...
  • Publication
    A minor merger origin for stellar inner discs and rings in spiral galaxies
    Context. Observations have shown that inner discs and rings (IDs and IRs) are not preferably found in barred galaxies, which indicates that their formation may...
  • Publication
    A model for constructing artificial integrated spectral lines and their Fourier transform properties relevant to the search for differential rotation of stars
    A model is given for constructing artificial integrated spectral lines which allows the inclusion of all effects relevant to the synthesis of these lines by...
  • Publication
    A modified Milne-Eddington approximation for a qualitative interpretation of chromospheric spectral lines
    Context. The Milne-Eddington approximation provides an analytic and simple solution to the radiative transfer equation. It can be easily implemented in...
  • Publication
    A multi-planetary system orbiting the early-M dwarf TOI-1238
    Context. The number of super-Earth and Earth-mass planet discoveries has increased significantly in the last two decades thanks to the Doppler radial velocity...
  • Publication
    A multi-wavelength analysis of M 81: insight on the nature of Arp's loop
    Context. The optical ring-like structure detected by Arp (1965) around M 81 (commonly referenced as “Arp's loop”) represents one of the most spectacular...
  • Publication
    A multiwavelength study of LS II+34 26: a hot post-AGB star in the process of becoming a planetary nebula.
    We present the results from a multiwavelength analysis of LS II+34 26, recently identified as a low mass post-AGB star and not a massive population I B-type...
  • Publication
    A MUSE map of the central Orion Nebula (M 42)
    We present a new integral field spectroscopic dataset of the central part of the Orion Nebula (M 42), observed with the MUSE instrument at the ESO VLT. We...
  • Publication
    A narrowband imaging survey of symbiotic stars
    Narrowband images of 51 symbiotic stars were obtained at the ESO and ORM observatories to search for resolved optical nebulae. Ionized nebulae much larger than...