Astrometric Companion Search - Cycle 4

Details Astrometric Companion Search - Cycle 4 Astrometric Companion Search - Cycle 4

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994hst..prop.5174j&link_type=abstract

HST Proposal ID #5174

Astronomy and Astrophysics

Astrophysics

Hst Proposal Id #5174 Stellar Astrophysics Astrometry

Scientific paper

One of groundbased, long-focus photographic astrometry's most challenging and most challenged research activities has been the search for "unseen" companions to nearby stars based upon analyses of perturbations in their observed proper motions. We propose to examine with FGS in the TRANS mode six late-type dwarf stars claimed to have low-mass companions of magnitudes and angular separations such as to make direct detection by FGS scans feasible. Any direct detection would not only extend importantly our knowledge on stars of very low mass and luminosity, but would also provide proof of the validity of a classical observational technique widely used in searches for other planetary systems.

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