On Eclipse Polarimetry of the Inner White Light Corona

Details On Eclipse Polarimetry of the Inner White Light Corona On Eclipse Polarimetry of the Inner White Light Corona

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sunge...2...53p&link_type=abstract

Sun and Geosphere, vol.2, no. 1, p. 53-55.

Physics

2

Scientific paper

Significantly reduced total solar eclipse sky brightness, low-scattered light instrumentation, and the use of a special algorithm for data reduction of allow us to carry out high precision linear polarization degree and direction determination with a realized accuracy of 1% and 1-2" respectively. Such an experiment was made during the total solar eclipse on August 11, 1999. The 2-D distributions of polarization degree and direction for the corona continuum radiation in the range 570-800 nm reveal different scale structures. Interpretation in terms of tangential (to the solar limb) velocities results in the detection of 30000 km/sec electron streams in the inner corona. These are not directly recorded either by current space or ground-based instruments in this optical spectral range.

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