25 July 2008 SPHERE ZIMPOL: overview and performance simulation
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Abstract
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.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Christian Thalmann, Christian Thalmann, Hans M. Schmid, Hans M. Schmid, Anthony Boccaletti, Anthony Boccaletti, David Mouillet, David Mouillet, Kjetil Dohlen, Kjetil Dohlen, Ronald Roelfsema, Ronald Roelfsema, Marcel Carbillet, Marcel Carbillet, Daniel Gisler, Daniel Gisler, Jean-Luc Beuzit, Jean-Luc Beuzit, Markus Feldt, Markus Feldt, Raffaele Gratton, Raffaele Gratton, Franco Joos, Franco Joos, Christoph U. Keller, Christoph U. Keller, Jan Kragt, Jan Kragt, Johan H. Pragt, Johan H. Pragt, Pascal Puget, Pascal Puget, Florence Rigal, Florence Rigal, Frans Snik, Frans Snik, Rens Waters, Rens Waters, François Wildi, François Wildi, } "SPHERE ZIMPOL: overview and performance simulation", Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 70143F (25 July 2008); doi: 10.1117/12.789158; https://doi.org/10.1117/12.789158
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