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The Application Of À Trous Wave Filtering And Monte Carlo Analysis On Secis 2001 Solar Eclipse Observations |
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| Authors: | A C Katsiyannis F Murtagh F P Keenan |
| Institution: | (1) Royal Observatory of Belgium, Avenue Circulaire-3-Ringlaan, 1180 Brussels, Belgium;(2) Department of Computer Science, Royal Holloway, University of London, Egham, Surrey, TW20 0EX, U.K.;(3) Observatoire Astronomique de Strasbourg, 11 rue de l'Université, 67000 Strasbourg, France;(4) Department of Pure and Applied Physics, Queen's University of Belfast, University Road, Belfast, BT7 1NN, Northern Ireland, U.K. |
| Abstract: | Eight thousand images of the solar corona were captured during the June 2001 total solar eclipse. New software for the alignment of the images and an automated technique for detecting intensity oscillations using multi-scale wavelet analysis were developed. Large areas of the images covered by the Moon and the upper corona were scanned for oscillations and the statistical properties of the atmospheric effects were determined. The à Trous wavelet transform was used for noise reduction and Monte Carlo analysis as a significance test of the detections. The effectiveness of those techniques is discussed in detail. |
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