Astrofísicas: Astrometría

  • Publicación
    An Isolated Mass-gap Black Hole or Neutron Star Detected with Astrometric Microlensing
    We present the analysis of five black hole candidates identified from gravitational microlensing surveys. Hubble Space Telescope astrometric data and densely...
  • Publicación
    Astrometric monitoring of the binary brown dwarf DENIS-P J1228.2-1547
    We present astrometric monitoring data of the binary brown dwarf DENIS-P J1228.2-1547. The data have been obtained with the Hubble Space Telescope over a time...
  • Publicación
    Astrometric orbits of spectral binary brown dwarfs - I. Massive T dwarf companions to 2M1059-21 and 2M0805+48
    Near-infrared spectroscopic surveys have uncovered a population of short-period, blended-light spectral binaries composed of low-mass stars and brown dwarfs...
  • Publicación
    Astrometric search for a planet around VB 10
    We observed VB 10 in August and September 2009 using the FORS2 camera of the VLT with the aim of measuring its astrometric motion and of probing for the...
  • Publicación
    Astrometry with Carte du Ciel plates, San Fernando zone . II. CdC-SF: a precise proper motion catalogue
    Context. The historic plates of the Carte du Ciel, an international cooperative project launched in 1887, offer valuable first-epoch material for the...
  • Publicación
    Astrometry with Carte du Ciel plates, San Fernando zone. I. Digitization and measurement using a flatbed scanner
    Context: The historic plates of the Carte du Ciel, an international cooperative project launched in 1887, offers valuable first-epoch material for determining...
  • Publicación
    CCD and Photographic Observations of the Comet C/1996 B2 (Hyakutake)
    About 200 CCD images of the comet C/1996 B2 - HYAKUTAKE were obtained and reduced, using four approaches by PPM stars and one by a GSC star, on March 20, 24, 25...
  • Publicación
    CCD photometry and astrometry for visual double and multiple stars of the HIPPARCOS catalogue. I. Presentation of the large scale project
    A description is given of the activities of an international working group created with the aim of obtaining both photometric and astrometric observations of...
  • Publicación
    CCD survey with the CMASF from the Southern Hemisphere
    A subcatalogue with positions and magnitudes of stars brighter than V = 16 and declinations between -30° and 0° is presented. The observations have been carried...