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Proceedings Paper

UVMag: Space UV and visible spectropolarimetry
Author(s): Martin Pertenais; Coralie Neiner; Laurent P. Parès; Pascal Petit; Frans Snik; Gerard van Harten
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Paper Abstract

UVMag is a project of a space mission equipped with a high-resolution spectropolarimeter working in the UV and visible range. This M-size mission will be proposed to ESA at its M4 call. The main goal of UVMag is to measure the magnetic fields, winds and environment of all types of stars to reach a better understanding of stellar formation and evolution and of the impact of stellar environment on the surrounding planets. The groundbreaking combination of UV and visible spectropolarimetric observations will allow the scientists to study the stellar surface and its environment simultaneously. The instrumental challenge for this mission is to design a high-resolution space spectropolarimeter measuring the full- Stokes vector of the observed star in a huge spectral domain from 117 nm to 870 nm. This spectral range is the main difficulty because of the dispersion of the optical elements and of birefringence issues in the FUV. As the instrument will be launched into space, the polarimetric module has to be robust and therefore use if possible only static elements. This article presents the different design possibilities for the polarimeter at this point of the project.

Paper Details

Date Published: 24 July 2014
PDF: 9 pages
Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91443B (24 July 2014); doi: 10.1117/12.2060561
Show Author Affiliations
Martin Pertenais, Observatoire Midi-Pyrénées, IRAP, CNRS, Univ. de Toulouse (France)
Lab. d'Etudes Spatiales et d'Instrumentation en Astrophysique, Univ. Paris Diderot (France)
Coralie Neiner, Lab. d'Etudes Spatiales et d'Instrumentation en Astrophysique, Univ. Paris Diderot (France)
Observatoire de Paris à Meudon (France)
Laurent P. Parès, Observatoire Midi-Pyrénées, IRAP, CNRS, Univ. de Toulouse (France)
Pascal Petit, Observatoire Midi-Pyrénées, IRAP, CNRS, Univ. de Toulouse (France)
Frans Snik, Leiden Observatory, Univ. Leiden (Netherlands)
Gerard van Harten, Leiden Observatory, Univ. Leiden (Netherlands)


Published in SPIE Proceedings Vol. 9144:
Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Jan-Willem A. den Herder; Mark Bautz, Editor(s)

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