Journal: Astronomy and Astrophysics

  • Publication
    The Pristine Dwarf-Galaxy survey: VI. A VLT/FLAMES spectroscopic study of the dwarf galaxy Boötes II
    Aims. The Milky Way has a large population of dwarf galaxy satellites. Their properties are sensitive to both cosmology and the physical processes underlying...
  • Publication
    The Pristine Inner Galaxy Survey (PIGS): IX. The largest detailed chemical analysis of very metal-poor stars in the Sagittarius dwarf galaxy
    The most metal-poor stars provide valuable insights into the early chemical enrichment history of a system, carrying the chemical imprints of the first...
  • Publication
    The pristine nature of SMSS 1605−1443 revealed by ESPRESSO
    Context. SMSS J160540.18−144323.1 is the carbon-enhanced metal-poor (CEMP) star with the lowest iron abundance ever measured, [Fe/H] = −6.2, which was first...
  • Publication
    The Pristine survey: XXIII. Data Release 1 and an all-sky metallicity catalogue based on Gaia DR3 BP/RP spectro-photometry
    We used the spectro-photometric information of ∼219 million stars from Gaia's Data Release 3 (DR3) to calculate synthetic, narrowband, metallicity-sensitive...
  • Publication
    The Pristine survey: XXIV. The Galactic underdogs: Dynamic tales of a Milky Way metal-poor population
    Context. Metal-poor stars hold key information on the early Milky Way. Through the identification and characterisation of substructures, one can understand...
  • Publication
    The Pristine survey: XXV. The very metal-poor Galaxy: Chemodynamics through the follow-up of the Pristine-Gaia synthetic catalogue
    Context. The Pristine-Gaia synthetic catalogue of reliable photometric metallicities makes use of spectrophotometric information from Gaia DR3 XP spectra to...
  • Publication
    The Pristine survey: XXVI. Chemical abundances of subgiant stars of the extremely metal-poor stream C-19
    Context. The C-19 stellar stream is the most metal-poor stream known to date. While its wth and velocity dispersion indicate a dwarf galaxy origin, its...
  • Publication
    The Pristine survey: XXVII. The extremely metal-poor stream C-19 stretches over more than 100 degrees
    The discovery of the most metal-poor stream, C-19, provides us with a fossil record of a stellar structure born very soon after the big bang. In this work, we...
  • Publication
    The properties of the obscuring material of a sample of active galactic nuclei from mid-IR and X-ray simultaneous fitting
    Context. Over ten mid-infrared (mid-IR) and X-ray models are currently attempting to describe the nuclear obscuring material of active galactic nuclei (AGNs)...