Orbital Motions of Close Binary Stars Cycle 3 High

Details Orbital Motions of Close Binary Stars Cycle 3 High Orbital Motions of Close Binary Stars Cycle 3 High

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993hst..prop.4893j&link_type=abstract

HST Proposal ID #4893

Computer Science

Performance

Hst Proposal Id #4893

Scientific paper

Nearby binary-star systems with rapid orbital motion are and will continue to be the principal source of our knowledge on stellar masses. Owing to its expected high angular resolution and high-precision astrometric performance, HST will provide unusual opportunities for binary-star research. The purpose of this project is to measure with HST/FGS in the transfer-function mode selected binary stars, primarily visual pairs at critical phases in their orbits, in order to improve substantially our knowledge of their orbital elements. These results will not only yield improved mass values for the systems so investigated, but will also serve as important calibrators for a large body of existing data on binary-star orbits and stellar masses.

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