Journal: Astronomy and Astrophysics

  • Publication
    Chromospheric polarity reversals on sunspots. Are they consistent with weak line emission?
    Photospheric and chromospheric solar magnetograms sometimes show opposite polarity. This intriguing phenomenon is associated with the emergence of magnetic flux...
  • Publication
    Chromospheric reversals in the emergence of an ephemeral region
    Context: The behaviour of both ephemeral regions and moving magnetic features has been often described for the photospheric layer, but not for the chromosphere...
  • Publication
    Chromospheric Rotational Modulation in Solar-Like Stars - Part Two - Multicomponent Modelling and Rotational Period of Alpha-Centauri from CAII H Spectroscopic Variability
    The K1V late-type dwarf α Cen B has been monitored to search for spectroscopic variability in the Ca II H chromospheric line during its rotational period. The...
  • Publication
    Chronology of our Galaxy from Gaia colour-magnitude diagram fitting (ChronoGal). I. The formation and evolution of the thin disc from the Gaia Catalogue of Nearby Stars
    Context. The study of the Milky Way is living a golden era thanks to the enormous high-quality datasets delivered by Gaia, and space asteroseismic and ground...
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    Circularization and synchronization times in the main sequence of detached eclipsing binaries.I. Using the formalism by Tassoul.
    We have studied a sample of selected eclipsing binaries with eccentric orbits and accurate absolute dimensions in order to analyse the validity of available...
  • Publication
    Circum-nuclear gas flows in NGC 4151.
    We report broad-band imaging observations which reveal a circum-nuclear gas ring in NGC 4151. The ring is delineated by two arc-like features probably resulting...
  • Publication
    Circumstellar effects on the Rb abundances in O-rich AGB stars
    For the first time we explore the circumstellar effects on the Rb (and Zr) abundance determination in O-rich asymptotic giant branch (AGB) stars by considering...
  • Publication
    CLASH-VLT: Galaxy cluster MACS J0329–0211 and its surroundings using galaxies as kinematic tracers
    Context. The study of substructure is an important step in determining how galaxy clusters form. Aims. We aim to gain new insights into the controversial...
  • Publication
    CLASH-VLT: Substructure in the galaxy cluster MACS J1206.2-0847 from kinematics of galaxy populations
    Aims: In the effort to understand the link between the structure of galaxy clusters and their galaxy populations, we focus on MACS J1206.2-0847 at z ~ 0.44 and...