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Recurrent mass ejections observed in H-alpha and CIV (1984)

Schmieder, B. ; Simon, G. ; Tandberg-Hanssen, E. ; [et al.]

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Publication Date: 2011-08-19

Description: Time sequences of recurrent mass ejections have been observed during a coordinated SMY program (Sept. 1, 1980 - Sept. 23, 1980 - Oct. 2, 1980). Comparison of the temporal evolution of H-alpha and CIV brightnesses shows a weak phase lag between H-alpha and CIV maxima, in the case of homologous flares, with CIV brightness maxima preceding H-alpha maxima. The analysis of the variation of the ejection velocities is expected to lead to the determination of an energy balance. Such recurrent ejections could be due to periodic energy storage and periodic reorganization of magnetic field as envisaged to occur for flares, but at lower energy levels.

Keywords: SOLAR PHYSICS

Type: Advances in Space Research (ISSN 0273-1177); 4; 7, 19

Format: text

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