Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010pobeo..90..175s&link_type=abstract
Publications of the Astronomical Observatory of Belgrade, vol. 90, pp. 175-178
Astronomy and Astrophysics
Astronomy
Scientific paper
We describe preliminary results of the wide-field (up to 20 div 30 R_&sun; heliocentric distance) spectro-imaging of the dusty plasma grains in the solar F-corona carried out during the total solar eclipse (TSE2009) of July 22, 2009 at Yuexi, China. The aim of the measurements was to measure the radial velocity field of the circumsolar dusty plasma using the Ca II K line λ 383.4 nm in absorption. The instrument used was a spectro-imaging camera with a Fabry-Perot etalon. The resulting radial velocity in the selected strips is ≈ -100 km s^{-1}. The definite conclusions on the velocity field will be drawn when the final analysis of the data will be completed.
Bonev Tanyu
Bram D.
Chalabaev A. A.
Dubovitskij A. I.
Golev Valeri
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