- SPHERE ZIMPOL: Overview and performance simulation
- Proceedings of SPIE, the International Society for Optical Engineering
- Pages (from-to)
- Document type
- Faculty of Science (FNWI)
- Anton Pannekoek Institute for Astronomy (API)
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.
- go to publisher's site
- Proceedings title: Ground-based and airborne instrumentation for astronomy II: 23-28 June 2008, Marseille, France
Place of publication: Bellingham, WA
Editors: I.S. McLean, M.M. Casali
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