Translator Disclaimer
27 June 2006 Scientific results from high-precision astrometry at the Palomar Testbed Interferometer
Author Affiliations +
Abstract
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 results from the PHASES search. The properties of the stars comprising binary systems are determined to high precision. The mutual inclinations of several hierarchical triple star systems have been determined. We will present upper limits constraining the the existence of giant planets in a few of the target systems.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Matthew W. Muterspaugh, Benjamin F. Lane, Maciej Konacki, B. F. Burke, M. M. Colavita, S. R. Kulkarni, and M. Shao "Scientific results from high-precision astrometry at the Palomar Testbed Interferometer", Proc. SPIE 6268, Advances in Stellar Interferometry, 62680F (27 June 2006); https://doi.org/10.1117/12.670688
PROCEEDINGS
8 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Future space interferometry missions
Proceedings of SPIE (July 04 2000)
Antarctica: the potential for interferometry
Proceedings of SPIE (October 19 2004)
Science with the Keck Interferometer ASTRA program
Proceedings of SPIE (July 21 2010)
Optimized beam-combination schemes for each channel for PRIMA
Proceedings of SPIE (February 20 2003)

Back to Top