Initial results from SECIS observations of the 2001 eclipse

Details Initial results from SECIS observations of the 2001 eclipse Initial results from SECIS observations of the 2001 eclipse

2003-11-24

arxiv.org/abs/astro-ph/0311534v2

Astronomy and Astrophysics

Astrophysics

6 pages, 3 figures, oral contribution to the "SOHO 13: Waves, oscillations and small scale events in the Solar Atmosphere" con

Scientific paper

SECIS observations of the June 2001 total solar eclipse were taken using an Fe xiv 5303 A filter. Existing software was modified and new code was developed for the reduction and analysis of these data. The observations, data reduction, study of the atmospheric and instrumental effects, together with some preliminary results are discussed. Emphasis is given to the techniques used for the automated alignment of the 8000 images, the application of the a Trous algorithm for noise filtering and the software developed for the automated detection of intensity oscillations using wavelet analysis. In line with findings from the 1999 SECIS total eclipse observations, intensity oscillations with periods in the range of 20-30 s, both inside and just outside coronal loops are also presented.

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