The oscillating loop prominence of July 17, 1981

Details The oscillating loop prominence of July 17, 1981 The oscillating loop prominence of July 17, 1981

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984soph...94..289v&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 94, Sept. 1984, p. 289-297.

Physics

26

Solar Magnetic Field, Solar Oscillations, Solar Prominences, Field Strength, Frequency Response, Magnetic Field Configurations, Magnetohydrodynamics

Scientific paper

Oscillatory motions of a loop prominence observed on July 17, 1981 are analysed. The oscillations were mainly horizontal, with a period of 8 min. Restoring force was a result of magnetic tension, and assuming a simplified magnetic field configuration the expression for frequencies of oscillations is derived and compared with the observations. Taking the observed period, the strength of the magnetic field permeating the prominence is estimated as 45 G. Finally, the stability of the prominence is discussed.

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