Eclipse polarimetric researches of Hα-prominences

Details Eclipse polarimetric researches of Hα-prominences Eclipse polarimetric researches of Hα-prominences

Mar 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.477...69a&link_type=abstract

In: Proceedings of the Second Solar Cycle and Space Weather Euroconference, 24 - 29 September 2001, Vico Equense, Italy. Editor:

Physics

1

Solar Eclipses, Polarimetry, Solar Prominences

Scientific paper

Polarimetric observations of Hα-prominences made by a full-limb portable coronagraph-polarimeter during the August 11, 1999 total solar eclipse are presented. Accuracy of 1% for polarization degree is achieved due to reducing the instrumental scattered light, installation of a polarizer in the plane of Lyot stop and a special algorithm for statistical data reduction. Polarimetric images of prominences (the 2D distributions of polarization degree) reveal polarization degree of 0-6% for quiescent prominences and 4-10% for active ones. Prospects for eclipse polarimetric researches are discussed.

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