Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981azh....58..376v&link_type=abstract
Astronomicheskii Zhurnal, vol. 58, Mar.-Apr. 1981, p. 376-382. In Russian.
Astronomy and Astrophysics
Astrophysics
2
Brightness, International Cooperation, Solar Corona, Stellar Spectrophotometry, Colorimetry, French Space Program, Reference Stars, Solar Eclipses, U.S.S.R. Space Program
Scientific paper
Results are presented of a study of negatives obtained on June 30, 1973 during the total solar eclipse in Africa; the study was part of a joint Soviet-French experiment on white corona dynamics, carried out by expeditions of Kiev University (Atar, Mauritania) and the Paris Astrophysical Institute (Moussoro, Chad). The distribution of total corona brightness up to 4.5 solar radii and its K and F corona components for east and north directions were found on the basis of novel methods of photometry and colorimetry using star images up to 8.5m as the photometry standards. Neither the color effect nor flattening is found in the inner part (less than 2.5 solar radii) of the F corona. Integral corona brightness in the standard zone of 1.03-6.00 solar radii was found to be 0.64 x 10 to the -6th solar-E.
Dzyubenko N. I.
Ivanchuk V. I.
Koutchmy Olga
Koutchmy Serge
Popov O. S.
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