Journal: Astronomy and Astrophysics

  • Publication
    Coudé-feed stellar spectral library - atmospheric parameters
    Context. Empirical libraries of stellar spectra play an important role in different fields. For example, they are used as reference for the automatic...
  • Publication
    Could very low-metallicity stars with rotation-dominated orbits have been driven by the bar?
    The most metal-poor stars (e.g., [Fe/H] ≤ –2.5) are the ancient fossils from the early assembly epoch of our Galaxy. They very likely formed before the the...
  • Publication
    Counting stars from the integrated spectra of galaxies
    Over the last few decades, evolutionary population synthesis models have powered an unmatched leap forward in our understanding of galaxies. From dating the age...
  • Publication
    Coupling of fast and Alfvén waves in a straight bounded magnetic field with density stratification
    The theoretical understanding of the linear standing or propagating magnetohydrodynamic waves in a variety of solar coronal structures is far from complete...
  • Publication
    COYOTES II: SPOT properties and the origin of photometric period variations in T Tauri stars.
    We present the results of a new multi-site campaign (COYOTES II) to monitor the light variations of T Tauri stars (TTS) of the Taurus-Auriga dark cloud. The...
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    COYOTES III: observational evidence for a lower limit to the rotational velocity of ZAMS G and K dwarfs.
    In order to provide additional constraints to current models of angular momentum evolution of solar-type stars, we have conducted a period-determination program...
  • Publication
    COYOTES IV: the rotational periods of low-mass Post-T Tauri stars in Taurus.
    We monitored the light variations of 58 weak-line T Tauri stars in Taurus, recently discovered in the X-ray wavelength range during the ROSAT All-Sky Survey. We...
  • Publication
    Coyotes-I - the Photometric Variability and Rotational Evolution of T-Tauri Stars
    In a multi-site photometric campaign to monitor T Tauri stars (TTS) in the Taurus-Auriga cloud over more than two months - dubbed Coordinated Observations of...
  • Publication
    Crucial aspects of the initial mass function. I. The statistical correlation between the total mass of an ensemble of stars and its most massive star
    Context. Our understanding of stellar systems depends on the adopted interpretation of the initial mass function, IMF φ(m). Unfortunately, there is not a common...