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Proceedings Paper

The ZIMPOL high contrast imaging polarimeter for SPHERE: system test results
Author(s): Ronald Roelfsema; Andreas Bazzon; Hans Martin Schmid; Johan Pragt; Daniel Gisler; Carsten Dominik; Andrea Baruffolo; Jean-Luc Beuzit; Anne Costille; Kjetil Dohlen; Mark Downing; Eddy Elswijk; Menno de Haan; Norbert Hubin; Markus Kasper; Christoph Keller; Jean-Louis Lizon; David Mouillet; Alexey Pavlov; Pascal Puget; Bernardo Salasnich; Jean-Francois Sauvage; Francois Wildi
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Paper Abstract

SPHERE (Spectro-Polarimetric High-contrast Exoplanet Research) is a new instrument for the VLT aimed at the direct detection of exo-planets. It has received its first light in May 2014. ZIMPOL (Zurich Imaging Polarimeter) is the imaging polarimeter subsystem of the SPHERE instrument. It's capable of both high accuracy and high sensitivity polarimetry but can also be used as a classical imager. It is located behind an extreme AO system and a stellar coronagraph. ZIMPOL operates at visible wavelengths (600-900 nm) which is best suited to detect the very faint reflected and hence polarized visible light from extra solar planets. It has an instantaneous Field of View of 3 x 3 arcsec2 (extendable to 8 arcsec diameter) with an angular resolution of 14 mili-arcsec. We discuss the results that are obtained from the full SPHERE-ZIMPOL system testing. In particular the optical, polarimetric and high contrast performance.

Paper Details

Date Published: 8 July 2014
PDF: 18 pages
Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91473W (8 July 2014); doi: 10.1117/12.2056493
Show Author Affiliations
Ronald Roelfsema, NOVA ASTRON (Netherlands)
Andreas Bazzon, ETH Zürich (Switzerland)
Hans Martin Schmid, ETH Zürich (Switzerland)
Johan Pragt, NOVA ASTRON (Netherlands)
Daniel Gisler, ETH Zürich (Switzerland)
Carsten Dominik, Astronomical Institute Anton Pannekoek (Netherlands)
Andrea Baruffolo, INAF - Osservatorio Astronomico di Padova (Italy)
Jean-Luc Beuzit, IPAG, 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)
Jean-Louis Lizon, European Southern Observatory (Germany)
David Mouillet, IPAG, Univ. Joseph Fourier (France)
Alexey Pavlov, Max-Planck-Institut für Astronomie (Germany)
Pascal Puget, IPAG, Univ. Joseph Fourier (France)
Bernardo Salasnich, INAF - Osservatorio Astronomico di Padova (Italy)
Jean-Francois Sauvage, ONERA (France)
Francois Wildi, Observatoire Astronomique de l’Univ. de Geneve (Switzerland)

Published in SPIE Proceedings Vol. 9147:
Ground-based and Airborne Instrumentation for Astronomy V
Suzanne K. Ramsay; Ian S. McLean; Hideki Takami, Editor(s)

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