Astrophysics, abstract
astro-ph/0605736
From: Matthew Muterspaugh [view email]
Date: Wed, 31 May 2006 01:37:53 GMT (201kb)
Scientific Results from High-precision Astrometry at the Palomar Testbed Interferometer
Authors: Matthew W. Muterspaugh, Benjamin F. Lane, Maciej Konacki, B. F. Burke, M. M. Colavita, S. R. Kulkarni, M. Shao
Comments: 8 Pages
Journal-ref: SPIE 2006 6268-16
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 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.
http://arxiv.org/abs/astro-ph/0605736
Space/Science » in reply to Like Planet, Like Sun
Scientific Results from High-precision Astrometry at the Palomar Testbed Interferometer
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