Other
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009dps....41.0502b&link_type=abstract
American Astronomical Society, DPS meeting #41, #5.02
Other
Scientific paper
Observing exoplanet host stars, we combine astrometry acquired with one of the Fine Guidance Sensors on Hubble Space Telescope with radial velocities acquired with the University of Texas Hobby-Eberly Telescope (and other previously published velocities) in aid of two goals. First, we wish to establish the identity of a companion (Jovian planet, brown dwarf, or star) by measuring its mass. This we find by establishing the size of the perturbation. That size, when informed by the mass of the host star and the distance to the system, provides component mass. Second, for some systems we will be able to measure the inclination of two components to establish the architecture of the exoplanetary system. Examples will include a newly measured mass for HD 145675 b = 14 Her b, and a progress report on the mutual inclination of the 'b' and 'c' components of the upsilon And system.
Bean Jacob L.
Benedict George F.
McArthur Barbara E.
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