SPHERE/ZIMPOL high resolution polarimetric imager - I. System overview, PSF parameters, coronagraphy, and polarimetry

H. M. Schmid; A. Bazzon; R. Roelfsema; D. Mouillet; J. Milli; F. Menard; D. Gisler; S. Hunziker; J. Pragt; C. Dominik; A. Boccaletti; C. Ginski; L. Abe; S. Antoniucci; H. Avenhaus; A. Baruffolo; P. Baudoz; J.L. Beuzit; M. Carbillet; G. Chauvin; R. Claudi; A. Costille; J.-B. Daban; M. de Haan; S. Desidera; K. Dohlen; M. Downing; E. Elswijk; N. Engler; M. Feldt; T. Fusco; J. H. Girard; R. Gratton; H. Hanenburg; Th. Henning; N. Hubin; F. Joos; M. Kasper; C. U. Keller; M. Langlois; E. Lagadec; P. Martinez; E. Mulder; A. Pavlov; L. Podio; P. Puget; S. P. Quanz; F. Rigal; B. Salasnich; J.-F. Sauvage; M. Schuil; R. Siebenmorgen; E. Sissa; F. Snik; M. Suarez; Ch. Thalmann; M. Turatto; S. Udry; A. van Duin; R. G. van Holstein; A. Vigan; F. Wildi

doi:10.1051/0004-6361/201833620

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Volume 619 (November 2018)

A&A, 619 (2018) A9

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Fig. 24.

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Telescope polarization angle θ_tel as function of the parallactic angle for zero-polarization standard stars measured in the filters V (green), N_R (red), and N_I (black) with dotted lines for the best fits according to Eq. (20). Blue diamonds are the VBB-filter data from Fig. 23.

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