Astrophysical: Astrometry

  • Publication
    The Gaia mission
    Gaia is a cornerstone mission in the science programme of the EuropeanSpace Agency (ESA). The spacecraft construction was approved in 2006, following a study in...
  • Talk
    The Gaia mission
    Gaia - the ESA cornerstone astrometric mission - was launched in December 2013, with the goal of censing the Milky Way population in a 6D space (positions and...
  • Publication
    The Impact of Gaia and LSST on Binaries and Exoplanets
    Two upcoming large scale surveys, the ESA Gaia and LSST projects, will bring a new era in astronomy. The number of binary systems that will be observed and...
  • Publication
    The Internal Proper Motion Kinematics of NGC 346: Past Formation and Future Evolution
    We investigate the internal kinematics of the young star-forming region NGC 346 in the Small Magellanic Cloud (SMC). We used two epochs of deep F555W and F814W...
  • Publication
    The M 4 Core Project with HST: I. Overview and first epoch
    We present an overview of the ongoing Hubble Space Telescope large program GO-12911. The program is focused on the core of M 4, the nearest Galactic globular...
  • Publication
    The nuclear dust lane of Circinus: collimation without a torus
    In some AGN, nuclear dust lanes connected to kpc-scale dust structures provide all the extinction required to obscure the nucleus, challenging the role of the...
  • Publication
    The observation of intrinsically different emergences for large and small active regions
    The analysis of high-resolution H-alpha and white-light observations on the emergence of 73 active regions shows an intrinsically different behavior for both...
  • Publication
    The Proper Motion of the Magellanic Clouds. I. First Results and Description of the Program
    We present the first results of a ground-based program to determine the proper motion of the Magellanic Clouds (MCs) relative to background quasars (QSO), being...
  • Publication
    The Proper Motion of the Magellanic Clouds. II. New Results for Five Small Magellanic Cloud Fields
    We present new results from a ground-based program to determine the proper motion of the Magellanic Clouds (MCs) relative to background quasars (QSOs), being...