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The instrumental polarization of the Nasmyth focus polarimetric differential imager NAOS/CONICA (NACO) at the VLT
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SYSNO ASEP 0351308 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The instrumental polarization of the Nasmyth focus polarimetric differential imager NAOS/CONICA (NACO) at the VLT Author(s) Witzel, G. (DE)
Eckart, A. (DE)
Buchholz, R. M. (DE)
Zamaninasab, M. (DE)
Lenzen, R. (DE)
Schoedel, R. (DE)
Araujo, C. (DE)
Sabha, N. (DE)
Bremer, M. (DE)
Karas, Vladimír (ASU-R) RID, ORCID
Straubmeier, C. (DE)
Muzic, K. (DE)Number of authors 12 Source Title Astronomy & Astrophysics. - : EDP Sciences - ISSN 0004-6361
Roč. 525, January (2011), A130/1-A130/15Number of pages 15 s. Language eng - English Country FR - France Keywords polarimeters ; black hole physics Subject RIV BN - Astronomy, Celestial Mechanics, Astrophysics R&D Projects GA205/07/0052 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10030501 - ASU-R (2005-2011) UT WOS 000285193700067 DOI 10.1051/0004-6361/201015009 Annotation We use the Stokes/Mueller formalism for metallic reflections to describe the instrumental polarization. The model is compared to standard-star observations and time-resolved observations of bright sources in the Galactic center. The differences between calibration methods are simulated and tested for three polarimetric Ks-band light curves of Sgr A*. Workplace Astronomical Institute Contact Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Year of Publishing 2011
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