Journal: Astronomy and Astrophysics

  • Publication
    Line-profile variations of the double-lined spectroscopic binary kappa Scorpii
    We present a total time series of high signal-to-noise, high-resolution spectra of the SiIII lambda 4552.6, lambda 4567.8 and lambda 4574.8 Å lines of the fast...
  • Publication
    Linear polarization of rapidly rotating ultracool dwarfs
    Aims: We aim to study the near-infrared linear polarization signal of rapidly rotating ultracool dwarfs with spectral types ranging from M7 through T2 and...
  • Publication
    Linear wavelength correlation matrices of photospheric and chromospheric spectral lines. I. Observations vs. modeling
    Context. The process that heats the solar chromosphere is a difficult target for observational studies because the assumption of local thermal equilibrium (LTE)...
  • Publication
    Lines in the cosmic microwave background spectrum from the epoch of cosmological helium recombination
    The main goal of this work is to calculate the contributions of bound-bound transitions of helium to the cosmological recombination spectrum. We show that...
  • Publication
    Linking star formation thresholds and truncations in the thin and thick disks of the low-mass galaxy UGC 7321
    Thin and thick disks are found in most spiral galaxies, yet their formation scenarios remain uncertain. Whether thick disks form through slow or fast, internal...
  • Publication
    Linking the primordial composition of planet building disks to the present-day composition of rocky exoplanets
    Context. The composition of rocky planets is strongly driven by the primordial materials in the protoplanetary disk, which can be inferred from the abundances...
  • Publication
    Links between the dynamical evolution and the surface color of the Centaurs
    Context. The Centaurs are a transitional population of minor bodies of the solar system and the evolutionary link between the trans-Neptunian objects and the...
  • Publication
    Lithium abundance and rotation of seismic solar analogues. Solar and stellar connection from Kepler and Hermes observations
    Context. Lithium abundance A(Li) and surface rotation are good diagnostic tools to probe the internal mixing and angular momentum transfer in stars. Aims: We...
  • Publication
    Lithium Abundances in a Flux-Limited Sample of Galactic Carbon Stars
    Lithium abundances, or upper limits, have been derived for 161 galactic carbon stars, selected from the Two Micron Sky Survey, using high resolution, high...