Scientific results from high-precision astrometry at the Palomar Testbed Interferometer

  title={Scientific results from high-precision astrometry at the Palomar Testbed Interferometer},
  author={Matthew W. Muterspaugh and Benjamin F. Lane and Maciej Konacki and Bernard F. Burke and M. Mark Colavita and Shrinivas R. Kulkarni and Michael Shao},
  booktitle={SPIE Astronomical Telescopes + Instrumentation},
A new observing mode for the Palomar Testbed Interferometer was developed in 2002-2003 which enables differential astrometry at the level of 20 micro-arcseconds (μas) for binary systems with separations of several hundred milli-arcseconds (mas). This phase-referenced mode is the basis of the Palomar High-precision Astrometric Search for Exoplanet Systems (PHASES), a search for giant planets orbiting either the primary or secondary star in fifty binary systems. We present the first science… 
Recent progress at the Palomar Testbed Interferometer
  • R. Akeson
  • Physics
    SPIE Astronomical Telescopes + Instrumentation
  • 2006
The Palomar Testbed Interferometer (PTI) is a long-baseline, near-infrared interferometer located on Palomar Mountain, California. PTI has been conducting science operations since 1997 and continues
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