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White Dwarf Planets from GAIA
Roberto Silvotti, Alessandro Sozzetti, Mario Lattanzi
We investigate the potential of high-precision astrometry with GAIA for detection of giant planetary companions to nearby white dwarfs. If one considers that, to date, no confirmed…
Parallaxes of Southern Extremely Cool objects - I: Targets, Proper motions and first results
Alexandre H. Andrei, Richard L. Smart, Jucira L. Penna +11
We present results from the PARallaxes of Southern Extremely Cool objects (PARSEC) program, an observational program begun in April 2007 to determine parallaxes for 122 L and 28 T…
Parallaxes and physical properties of 11 mid-to-late T dwarfs
F. Marocco, R. L. Smart, H. R. A. Jones +11
We present parallaxes of 11 mid-to-late T dwarfs observed in the UKIRT Infrared Deep Sky Survey. We use these results to test the reliability of model predictions in magnitude-colo…
Photometric transit search for planets around cool stars from the Western Italian Alps: a site characterization study
M. Damasso, P. Giacobbe, P. Calcidese +5
We present the results of a site characterization study carried out at the Astronomical Observatory of the Autonomous Region of the Aosta Valley (OAVdA), in the Western Italian Alp…
Gaia and the Astrometry of Giant Planets
M. G. Lattanzi, A. Sozzetti
Scope of this contribution is twofold. First, it describes the potential of the global astrometry mission Gaia for detecting and measuring planetary systems based on detailed doubl…
Cool dwarfs stars from the Torino Observatory Parallax Program
R. L. Smart, G. Ioannidis, H. R. A. Jones +2
We investigate and parameterise high proper motion red stars in the Torino Observatory Parallax Program. Observations of 27 objects were made over the period 1994 - 2001 on the 1.0…