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Proceedings Paper

SPHERE-ZIMPOL system testing: status report on polarimetric high contrast results
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Paper Abstract

SPHERE (Spectro-Polarimetric High Contrast Exoplanet Research) is one of the first instruments which aim for the direct detection from extra-solar planets. SPHERE commissioning is foreseen in 2013 on the VLT. ZIMPOL (Zurich Imaging Polarimeter) is the high contrast imaging polarimeter subsystem of the ESO SPHERE instrument. ZIMPOL is dedicated to detect the very faint reflected and hence polarized visible light (600-900 nm) from extrasolar planets. It is located behind an extreme AO system (SAXO) and a stellar coronagraph. We present the first high contrast polarimetric results obtained for the fully integrated SPHERE-ZIMPOL system. We have measured the polarimetric high contrast performance of several coronagraphs: a Classical Lyot on substrate, a suspended Classical Lyot and two 4 Quadrant Phase Mask coronagraphs. We describe the impact of crucial system parameters – Adaptive Optics, Coronagraphy and Polarimetry - on the contrast performance.

Paper Details

Date Published: 26 September 2013
PDF: 20 pages
Proc. SPIE 8864, Techniques and Instrumentation for Detection of Exoplanets VI, 88640C (26 September 2013); doi: 10.1117/12.2023600
Show Author Affiliations
Ronald Roelfsema, NOVA-ASTRON (Netherlands)
Daniel Gisler, ETH Zürich (Switzerland)
Johan Pragt, NOVA-ASTRON (Netherlands)
Hans Martin Schmid, ETH Zürich (Switzerland)
Andreas Bazzon, ETH Zürich (Switzerland)
Carsten Dominik, Astronomical Institute “Anton Pannekoek” (Netherlands)
Andrea Baruffolo, INAF - Osservatorio Astronomico di Padova (Italy)
Anthonoy Boccaletti, LESIA - Observatoire de Paris (France)
Jean-Luc Beuzit, IPAG, CNRS, Univ. Joseph Fourier (France)
Anne Costille, Lab. d'Astrophysique de Marseille, CNRS, Univ. de Provence (France)
Kjetil Dohlen, Lab. d'Astrophysique de Marseille, CNRS, Univ. de Provence (France)
Mark Downing, European Southern Observatory (Germany)
Eddy Elswijk, NOVA-ASTRON (Netherlands)
Menno de Haan, NOVA-ASTRON (Netherlands)
Norbert Hubin, European Southern Observatory (Germany)
Markus Kasper, European Southern Observatory (Germany)
Christoph Keller, Leiden Observatory (Netherlands)
Matthew Kenworthy, Leiden Observatory (Netherlands)
Jean-Louis Lizon, European Southern Observatory (Germany)
Patrice Martinez, IPAG, CNRS, Univ. Joseph Fourier (France)
David Mouillet, IPAG, CNRS, Univ. Joseph Fourier (France)
Alexey Pavlov, Max-Planck-Institut fur Astronomie (Germany)
Pascal Puget, IPAG, CNRS, Univ. Joseph Fourier (France)
Bernardo Salasnich, INAF - Osservatorio Astronomico di Padova (Italy)
Jean-Francois Sauvage, ONERA (France)
Christian Thalmann, Astronomical Institute “Anton Pannekoek” (Netherlands)
Francois Wildi, Univ. de Geneve (Switzerland)


Published in SPIE Proceedings Vol. 8864:
Techniques and Instrumentation for Detection of Exoplanets VI
Stuart Shaklan, Editor(s)

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