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Bulgarian Journal of Physics
Print: 1310-0157 Online: 1314-2666
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RECOGNIZED BY THE EUROPEAN PHYSICAL SOCIETY 
Bulg. J. Phys. vol.27 no.2 (2000), pp. 024-027
1999 Solar Eclipse Corona in Polarized White Light. Preliminary Results
M.T. Ozkan1, T. Ak2, V. Kulijanishvili3, K.T. Oz2, A. Okten2, V. Dermendjiev4
1Istanbul University, Observatory Research and Application Center, Turkey
2Istanbul University, Faculty of Science, Department of Astronomy and Space Sciences, Turkey
3Abastumani Astrophysical Observatory of Georgian Academy of Sciences, Georgia
4Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria
go back1Istanbul University, Observatory Research and Application Center, Turkey
2Istanbul University, Faculty of Science, Department of Astronomy and Space Sciences, Turkey
3Abastumani Astrophysical Observatory of Georgian Academy of Sciences, Georgia
4Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria
Abstract. This paper deals with the preliminary results of August 11, 1999 white-light polarization observations carried out in Turkey (Turhal). The corona was photographed in three positions of the polaroid differing by 60°, and the twelve pictures were obtained. All the films are analyzed by means of image processing technique. After coronal holes arc identified in Solar Geophysical Data and from the corona observations, distributions of polarization degree and brightness in these holes are obtained and the results are discussed.