Full-Stokes Polarimetry with Speckle Techniques

Details Full-Stokes Polarimetry with Speckle Techniques Full-Stokes Polarimetry with Speckle Techniques

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..405..407b&link_type=abstract

Solar Polarization 5: In Honor of Jan Stenflo ASP Conference Series, Vol. 405, proceedings of the conference held 17-21 Septembe

Astronomy and Astrophysics

Astronomy

Scientific paper

The new full-Stokes polarimeter implemented in the 2D `Göttingen' Fabry-Perot spectrometer, based on ferroelectric liquid crystals, yields magnetograms with minimised seeing induced crosstalk. A spatial resolution of 0."30--0."35 is achieved after applying speckle methods. The detection limit for the magnetic field strength is 16 G (≡ 3σ), yielding a polarimetric sensitivity of 7--8×1015 Mx. Examples of intensity maps, Dopplergrams and magnetograms from quiet Sun are discussed.

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