Journal: Astronomy and Astrophysics

  • Publication
    Abundances of disk and bulge giants from high-resolution optical spectra. II. O, Mg, Ca, and Ti in the bulge sample (Corrigendum)
    Based on observations collected at the European Southern Observatory, Chile (ESO programs 71.B-0617(A), 073.B-0074(A), and 085.B-0552(A)).
  • Publication
    Abundances of disk and bulge giants from high-resolution optical spectra. II. O, Mg, Co, and Ti in the bulge sample
    Context. Determining elemental abundances of bulge stars can, via chemical evolution modeling, help to understand the formation and evolution of the bulge...
  • Publication
    Abundances of Na, Mg and Al in stars with giant planets
    We present Na, Mg and Al abundances in a set of 98 stars with known giant planets, and in a comparison sample of 41 “single” stars. The results show that the [X...
  • Publication
    Abundances of refractory elements in the atmospheres of stars with extrasolar planets
    Aims.This work presents a uniform and homogeneous study of chemical abundances of refractory elements in 101 stars with and 93 without known planetary...
  • Publication
    Accretion processes in the galaxy cluster Hydra A/Abell 780
    Context. Clusters of galaxies evolve and accrete mass, mostly from small galaxy systems. Aims: Our aim is to study the velocity field of the galaxy cluster...
  • Publication
    Accretion-induced flickering variability among symbiotic stars from space photometry with NASA TESS
    Context. Symbiotic binaries exhibit a wide range of photometric variability across different timescales. These changes can be attributed to factors such as...
  • Publication
    Accurate masses of very low mass stars. I. GL 570BC (0.6 M_sun+0.4 M_sun)
    We present very accurate individual masses (1.2% relative accuracy) for the two components of Gl 570BC, an interferometric and double-lined spectroscopic binary...
  • Publication
    Accurate masses of very low mass stars. II. The very low mass triple system GL 866
    We present very accurate orbital parameters and mass measurements (2.4% accuracy) for the well known very low mass triple system Gl 866. We obtain first orbital...
  • Publication
    Accurate masses of very low mass stars. III. 16 new or improved masses
    We have obtained adaptive optics images and accurate radial velocities for 7 very low mass objects, In the course of a long term effort to determine accurate...