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Stellar and Molecular Radii of a Mira Star: First Observations with the Keck Interferometer Grism
J. A. Eisner, J. R. Graham, R. L. Akeson +6
Using a new grism at the Keck Interferometer, we obtained spectrally dispersed (R ~ 230) interferometric measurements of the Mira star R Vir. These data show that the measured radi…
Limits to Tertiary Astrometric Companions in Binary Systems
Matthew W. Muterspaugh, Benjamin F. Lane, S. R. Kulkarni +3
The Palomar High-precision Astrometric Search for Exoplanet Systems (PHASES) has monitored 37 sub-arcsecond binary systems to determine whether their Keplerian orbits are perturbed…
Scientific Results from High-precision Astrometry at the Palomar Testbed Interferometer
Matthew W. Muterspaugh, Benjamin F. Lane, Maciej Konacki +4
A new observing mode for the Palomar Testbed Interferometer was developed in2002-2003 which enables differential astrometry at the level of 20 micro-arcseconds for binary systems w…