Journal: Astronomy and Astrophysics

  • Publication
    New measurement of the 6Li/7Li isotopic ratio in the extra-solar planet host star HD 82943 and line blending in the Li 6708 Å region
    The presence of possible blends in the spectral region of the Li resonance line at 6708 Å in solar-type metal-rich stars is investigated using high resolution...
  • Publication
    New multi-site observations of the delta Scuti stars BS and BT Cancri. Results of the STEPHI VII campaign on the Praesepe cluster
    New observations of BS and BT Cnc were performed during the STEPHI VII campaign in 1996 February. An overall run of 115 hours of data was collected. Different...
  • Publication
    New near-infrared JHKs light-curve templates for RR Lyrae variables
    We provide homogeneous optical (UBVRI) and near-infrared (NIR, JHK) time series photometry for 254 cluster (ω Cen, M 4) and field RR Lyrae (RRL) variables. We...
  • Publication
    New neighbours. III. 21 new companions to nearby dwarfs, discovered with adaptive optics
    We present some results of a CFHT adaptive optics search for companions to nearby dwarfs. We identify 21 new components in solar neighbourhood systems, of which...
  • Publication
    New neighbours. VI. Spectroscopy of DENIS nearby stars candidates
    We present spectra of 36 nearby star candidates and 3 red giant candidates, identified in the DENIS database. 32 of the dwarf candidates are nearby red dwarfs...
  • Publication
    New neighbours: II. An M9 dwarf at d ~ 4 pc, DENIS-P J104814.7-395606.1
    We present the discovery of a previously unknown member of the immediate solar neighbourhood, DENIS-P J104814.7-395606.1 (hereafter DENIS 1048-39), identified...
  • Publication
    New observations of asteroid (175706) 1996 FG3, primary target of the ESA Marco Polo-R mission
    Context. Near-Earth asteroid (175706) 1996 FG3 is the primary target of the ESA Marco Polo-R mission, which was selected for the assessment study phase of ESA...
  • Publication
    New optical spectra and general discussion on the nature of ULXs
    We present optical spectroscopic observations of three Ultra Luminous X-ray sources (ULXs). Two of them are very close to the active galaxy NGC 720 and the...
  • Publication
    New spin period determination for comet 6P/d'Arrest
    A lightcurve of comet 6P/d'Arrest from R-band CCD images taken at La Palma 2.52 m NOT telescope is presented. The lightcurve shows noticeable periodic changes...