POLIS: A spectropolarimeter for the VTT and for GREGOR

Bibcode
2003AN....324..300S
Schmidt, W.; Beck, C.; Kentischer, T.; Elmore, D.; Lites, B.
Bibliographical reference

Astronomische Nachrichten, Vol. 324, No. 4, p. 300-301

Advertised on:
2003
Number of authors
5
IAC number of authors
0
Citations
38
Refereed citations
32
Description
The polarimetric Littrow Spectrograph POLIS is designed for vector polarimetry at high angular and spectral resolution. It measures the magnetic field simultaneously in the photosphere and the chromosphere of the sun. Both branches of the polarimetry unit are dual beam systems with a single rotating modulator for both wavelengths and polarizing beam splitters in front of each CCD camera. POLIS has been installed at the VTT on Tenerife and has seen First Light on 17 May 2002. A modified version of POLIS will be developed for the balloon mission Sunrise. That version will have UV capabilities down to 200 nm.
Type
Non-refereed
Techniques

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