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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



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ID: 660699.0, MPI für Astronomie / Publikationen_mpia
Narrow-angle astrometry with PRIMA
Authors:Sahlmann, J.; Ségransan, D.; Mérand, A.; Zimmerman, N.; Abuter, R.; Chazelas, B.; Delplancke, F.; Henning, T.; Kaminski, A.; Köhler, R.; Launhardt, R.; Mohler, M.; Pepe, F.; Queloz, D.; Quirrenbach, A.; Reffert, S.; Schmid, C.; Schuhler, N.; Schulze-Hartung, T.
Publisher:SPIE
Date of Publication (YYYY-MM-DD):2012
Title of Proceedings:Optical and Infrared Interferometry III
Start Page:id. 84450S-84450S
End Page:11
Title of Series:SPIE
Volume (in Series):8445
Name of Conference/Meeting:Optical and Infrared Interferometry III
Review Status:not specified
Audience:Not Specified
Abstract / Description:The Extrasolar Planet Search with PRIMA project (ESPRI) aims at characterising and detecting extrasolar planets by measuring the host star's reflex motion using the narrow-angle astrometry capability of the PRIMA facility at the Very Large Telescope Interferometer. A first functional demonstration of the astrometric mode was achieved in early 2011. This marked the start of the astrometric commissioning phase with the purpose of characterising the instrument's performance, which ultimately has to be sufficient for exoplanet detection. We show results obtained from the observation of bright visual binary stars, which serve as test objects to determine the instrument's astrometric precision, its accuracy, and the plate scale. Finally, we report on the current status of the ESPRI project, in view of starting its scientific programme.
Free Keywords:Astrophysics - Instrumentation and Methods for Astrophysics; Astrophysics - Earth and Planetary Astrophysics; Astrophysics - Solar and Stellar Astrophysics
Comment of the Author/Creator:Date: 2012, July 1, 2012
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://cdsads.u-strasbg.fr/abs/2012arXiv1207.5510S [ID No:1]
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