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Dynamics of polar plumes observed during the total solar eclipse of August 1, 2008

Barczynski, K.; Rušin, V.; Saniga, M. +1 more

We study dynamics of polar plumes observed during the 2008 eclipse from three ground-based sites and the Hinode satellite. The speed of apparent upward propagation, as inferred from the changes of brightness within each plume, is found to lie in the range from 30 to 100 km s^-1. Some white-light plumes located in polar coronal holes were…

Denoising observational data

Bourdin, Ph. -A.

Reducing noise caused by the instrumentation in observational data is a crucial step in data post-processing. A method is searched for that conserves most of the instrumental resolution and introduces as few methodical artefacts as possible. With such a method integrated in an observation sites software tool-chain, the resources spent for the gene…