Journal: Astronomy and Astrophysics

  • Publication
    Inflection point in the power spectrum of stellar brightness variations. II. The Sun
    Context. Young and active stars generally have regular, almost sinusoidal, patterns of variability attributed to their rotation, while the majority of older and...
  • Publication
    Inflection point in the power spectrum of stellar brightness variations. III. Facular versus spot dominance on stars with known rotation periods
    Context. Stellar rotation periods can be determined by observing brightness variations caused by active magnetic regions transiting visible stellar disk as the...
  • Publication
    Influence of phase-diversity image reconstruction techniques on circular polarization asymmetries
    Context. Full Stokes filter-polarimeters are key instruments for investigating the rapid evolution of magnetic structures on the solar surface. To this end, the...
  • Publication
    Infrared observations of binary stars. II
    Near infrared photometry is presented for the close eclipsing binaries R CMa, TX UMa, delta Lib, TV Cas, and AR Lac. The data are used to place limits on mass...
  • Publication
    Infrared observations of peculiar carbon stars.
    We present a uniform and high quality set of infrared photometric (JHK) observations of the 6 peculiar carbon giant stars V Ari, UV Cam, BD+34 911, TU Gem, BD...
  • Publication
    Infrared radial velocities of vB 10
    We present radial velocities of the M8V-type, very low-mass star vB 10 obtained at four different epochs between 2001 and 2008. We use high-resolution (R ~ 20...
  • Publication
    Infrared spectroscopy of the largest known trans-Neptunian object 2001 KX75
    We report complete near-infrared (0.9-2.4 mu m) spectral observations of the largest know trans-Neptunian objects (TNO) 28976 = 2001 KX76 taken in two different...
  • Publication
    Infrared spectroscopy of V616 Monocerotis (=A0620-00): the accretion disc contamination
    We have obtained for the first time K-band infrared spectra of the soft X-ray transient V616 Mon (=A0620-00). We determine the 2-sigma upper limit to the...
  • Publication
    Inner and outer rings are not strongly coupled with stellar bars
    Rings are distinctive features of many disc galaxies and their location and properties are closely related to the disc dynamics. In particular, rings are often...