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Lyman-alpha observations of comet Hyakutake with SWAN on SOHO

Schmidt, W.; Bertaux, J. L.; Lallement, R. +7 more

The SWAN instrument on board SOHO is a Lyman-α (Lα) photometer able to map the sky intensity with a resolution of 1°, and a capability of microstepping (0.1°). SWAN is primarily devoted to the study of the large scale distribution of solar wind from its imprints on the interplanetary sky background, but was in addition extensively used to map the …