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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



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ID: 421436.0, MPI für Astronomie / Publikationen_mpia
SPHERE ZIMPOL: overview and performance simulation
Authors:Thalmann, Christian; Schmid, Hans M.; Boccaletti, Anthony; Mouillet, David; Dohlen, Kjetil; Roelfsema, Ronald; Carbillet, Marcel; Gisler, Daniel; Beuzit, Jean-Luc; Feldt, Markus; Gratton, Raffaele; Joos, Franco; Keller, Christoph U.; Kragt, Jan; Pragt, Johan H.; Puget, Pascal; Rigal, Florence; Snik, Frans; Waters, Rens; Wildi, François
Language:English
Publisher:SPIE
Place of Publication:Bellingham, Wash.
Date of Publication (YYYY-MM-DD):2008
Title of Proceedings:Ground-based and Airborne Instrumentation for Astronomy II
Start Page:70143F-70143F
End Page:12
Title of Series:SPIE
Volume (in Series):7014
Name of Conference/Meeting:Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series
Review Status:not specified
Audience:Experts Only
Abstract / Description:The ESO planet finder instrument SPHERE will search for the polarimetric signature of the reflected light from extrasolar planets, using a VLT telescope, an extreme AO system (SAXO), a stellar coronagraph, and an imaging polarimeter (ZIMPOL). We present the design concept of the ZIMPOL instrument, a single-beam polarimeter that achieves very high polarimetric accuracy using fast polarization modulation and demodulating CCD detectors. Furthermore, we describe comprehensive performance simulations made with the CAOS problem-solving environment. We conclude that direct detection of Jupiter-sized planets in close orbit around the brightest nearby stars is achievable with imaging polarimetry, signal-switching calibration, and angular differential imaging.
Comment of the Author/Creator:Date: 2008, August 1, 2008
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://adsabs.harvard.edu/abs/2008SPIE.7014E.112T [ID No:1]
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