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The PHASES Differential Astrometry Data Archive. V. Candidate Substellar Companions to Binary Systems
Matthew W. Muterspaugh, Benjamin F. Lane, S. R. Kulkarni +7
The Palomar High-precision Astrometric Search for Exoplanet Systems monitored 51 subarcsecond binary systems to evaluate whether tertiary companions as small as Jovian planets orbi…
The PHASES Differential Astrometry Data Archive IV: The Triple Star Systems 63 Gem A and HR 2896
Matthew W. Muterspaugh, Francis C. Fekel, Benjamin F. Lane +7
(Abridged) Differential astrometry measurements from the Palomar High-precision Astrometric Search for Exoplanet Systems (PHASES) are used to constrain the astrometric orbit of the…
The PHASES Differential Astrometry Data Archive. II. Updated Binary Star Orbits and a Long Period Eclipsing Binary
Matthew W. Muterspaugh, William I. Hartkopf, Benjamin F. Lane +8
Differential astrometry measurements from the Palomar High-precision Astrometric Search for Exoplanet Systems have been combined with lower precision single-aperture measurements c…
Speckle Interferometry at the U.S. Naval Observatory. XV
Brian D. Mason, William I. Hartkopf, Gary L. Wycoff
Results of 2433 intensified CCD observations of double stars, made with the 26-inch refractor of the U.S. Naval Observatory are presented. Each observation of a system represents a…
Binary Star Orbits. III. In which we Revisit the Remarkable Case of Tweedledum and Tweedledee
Brian D. Mason, William I. Hartkopf, Harold A. McAlister
Two of the most challenging objects for optical interferometry in the middle of the last century were the close components (FIN 332) of the wide visual binary STF2375 (= WDS 18455+…
The Third US Naval Observatory CCD Astrograph Catalog (UCAC3)
N. Zacharias, C. Finch, T. Girard +27
The third US Naval Observatory (USNO) CCD Astrograph Catalog, UCAC3 was released at the IAU General Assembly on 2009 August 10. It is the first all-sky release in this series and c…