Hostname: page-component-745bb68f8f-b95js Total loading time: 0 Render date: 2025-01-24T07:28:54.445Z Has data issue: false hasContentIssue false
  • English
  • Français

Reconnection Driven Coronal Transients

Published online by Cambridge University Press:  14 August 2015

G. W. Pneuman
G. W. Pneuman*
Affiliation:
Max-Planck-Institut für Physik und Astrophysik, Munich

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The association of coronal transients with two-ribbon solar flares is well established. During the Skylab period, every two-ribbon flare when observed close enough to the limb was accompanied by a coronal transient. Flares do not occur with all transients, however many of these transients are associated with soft X-ray enhancements in the corona similar to but less energetic than the intense X-ray loops that occur with two-ribbon flares [cf. MacCombie and Rust (1979) for a review]. The eruption of a filament seems to be the ingredient common to all these events - more so than flares. For these reasons, we consider this class of phenomena, regardless of whether a flare occurs or not, to be exhibiting a common physical process. To produce chromospheric emission requires a substantial amount of energy. Hence, one should expect chromospheric flares to be associated with only the most energetic phenomena. Nevertheless, the most comprehensive observations covering a wide range of wavelengths (Hα, EUV, X-ray, radio, white light) are available for the large two-ribbon flares, and the study of these events sheds the most light on the mechanism which produces coronal transients.

Type
Part IV. Solar Transient Phenomena Affecting the Corona and Interplanetary Medium: - Theoretical Considerations
Information
Symposium - International Astronomical Union , Volume 91: Solar and Interplanetary Dynamics , 1980 , pp. 317 - 321
Copyright
Copyright © Reidel 1980 

References

Anzer, U. and Pneuman, G.W.: 1979 (in preparation).Google Scholar
MacCombie, W.J. and Rust, D.M.: 1979, Solar Phys. 61, pp. 69–89.CrossRefGoogle Scholar
Pneuman, G.W. 1979, Solar Flare Magnetohydrodynamics, (ed. Priest, E.), Gordon and Preach Pub. Co., New York, London. Paris, (in press).Google Scholar
Pneuman, G.W. 1980, Solar Phys. 65, pp. 369.CrossRefGoogle Scholar