Precision narrow-angle astrometry of binary stars with the Navy Prototype Optical Interferometer

@inproceedings{Armstrong2004PrecisionNA,
  title={Precision narrow-angle astrometry of binary stars with the Navy Prototype Optical Interferometer},
  author={J. T. Armstrong and James H. Clark and G. Charmaine Gilbreath and Robert B. Hindsley and Donald J. Hutter and David Mozurkewich and Thomas A. Pauls},
  booktitle={SPIE Astronomical Telescopes + Instrumentation},
  year={2004}
}
The Navy Prototype Optical Interferometry (NPOI) group has started an astrometric search for planets in binary star systems based on the idea of using the binary components as position references for one another and looking for deviations from Keplerian motion. Our search will complement the radial velocity (vR) searches in three ways. We will observe stars of all spectral types; vR searches are limited to the FGKM range, where stars exhibit narrow spectral lines. We will search for planets in… 

Alternative approach to precision narrow-angle astrometry for Antarctic long baseline interferometry

The conventional approach to high-precision narrow-angle astrometry using a long baseline interferometer is to directly measure the fringe packet separation of a target and a nearby reference star.

PHASE-REFERENCED INTERFEROMETRY AND NARROW-ANGLE ASTROMETRY WITH SUSI

The Sydney University Stellar Interferometer (SUSI) now incorporates a new beam combiner, called the Microarc-second University of Sydney Companion Astrometry instrument (MUSCA), for the purpose of

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