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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 421582.0, MPI für Astronomie / Publikationen_mpia
The ESPRI project: astrometric exoplanet search with PRIMA
Authors:Launhardt, R.; Queloz, D.; Henning, Th; Quirrenbach, A.; Delplancke, F.; Andolfato, L.; Baumeister, H.; Bizenberger, P.; Bleuler, H.; Chazelas, B.; Dérie, F.; Di Lieto, L.; Duc, T. P.; Duvanel, O.; Elias, N. M.; Fluery, M.; Geisler, R.; Gillet, D.; Graser, U.; Koch, F.; Köhler, R.; Maire, C.; Mégevand, D.; Michellod, Y.; Moresmau, J. M.; Müller, A.; Müllhaupt, P.; Naranjo, V.; Pepe, F.; Reffert, S.; Sache, L.; Ségransan, D.; Salvadé, Y.; Schulze-Hartung, T.; Setiawan, J.; Simond, G.; Sosnowska, D.; Stilz, I.; Tubbs, B.; Wagner, K.; Weber, L.; Weise, P.; Zago, L.
Place of Publication:Bellingham, Wash.
Date of Publication (YYYY-MM-DD):2008
Title of Proceedings:Optical and Infrared Interferometry
Start Page:70132I-70132I
End Page:10
Title of Series:SPIE
Volume (in Series):7013
Name of Conference/Meeting:Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series
Review Status:not specified
Audience:Not Specified
Abstract / Description:PRIMA, the instrument for Phase-Referenced Imaging and Micro-arcsecond Astrometry at the VLTI, is currently being developed at ESO. PRIMA will implement the dual-feed capability, at first for two UTs or ATs, to enable simultaneous interferometric observations of two objects that are separated by up to 1 arcmin. PRIMA is designed to perform narrow-angle astrometry in K-band with two ATs as well as phase-referenced aperture synthesis imaging with instruments like Amber and Midi. In order to speed up the full implementation of the 10 microarcsec astrometric capability of the VLTI and to carry out a large astrometric planet search program, a consortium lead by the Observatoire de Genève, Max Planck Institute for Astronomy, and Landessternwarte Heidelberg, has built Differential Delay Lines for PRIMA and is developing the astrometric observation preparation and data reduction software. When the facility becomes fully operational in 2009, we will use PRIMA to carry out a systematic astrometric Exoplanet Search program, called ESPRI. In this paper, we describe the narrow-angle astrometry measurement principle, give an overview of the ongoing hardand software developments, and outline our anticipated astrometric exoplanet search program.
Comment of the Author/Creator:Date: 2008, July 1, 2008
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL: [ID No:1]
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