Mathematics – Logic
Scientific paper
Jan 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987lastr.101...21c&link_type=abstract
L'Astronomie (ISSN 0004-6302), vol. 101, Jan. 1987, p. 21-27. In French.
Mathematics
Logic
Chromosphere, Chronophotography, Solar Flares, Astronomical Photography, Protuberances, Solar Limb, Solar Spectrometers, Stellar Models
Scientific paper
A series of 33 photographs of the September 12, 1985 chromospheric eruption, observed at the limb with the Sorbonne Observatory prominence spectrograph, are analyzed, showing a homologous-eruption spatial evolution, with a rapid flash phase followed by a slow relaxing phase. The morphological evolution of the eruptive prominence consists of an initial chromospheric eruption followed by the appearance of a dense conical ringlike prominence, and finally, an ejection of rectilinear fibrous matter which reaches a velocity of 500 km/s. The analysis of the prominence dynamics indicates a constancy of magnetic structures, and shows the influence of the various chromospheric elements upon one another.
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