The finest white-light coronal features |
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Authors: | Serge Koutchmy Olivier Bouchard Jean Mouette Olga Koutchmy |
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Affiliation: | (1) Institut d'Astrophysique de Paris, CNRS, 98 bis Bd Arago, F-75014 Paris, France;(2) Laboratoire d'Analyse Numérique, Université Pierre et Marie Curie, Tour 55–65, 4 Place Jussieu, F-75230 Paris, France |
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Abstract: | An attempt to detect the finest white-light coronal features observed with a large optical telescope was made at the July 11, 1991 Solar Total Eclipse. A few selected results taken from the video-CCD high speed observations obtained at the prime focus of the Canada-France-Hawaï-Telescope (CFHT) with a red coronal interference filter are presented. The smallest (sub-arsec) detected and/or resolved coronal features are shown. The methods that were used to extract them from the noisy and seeing-limited images taken from video frames are described. |
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