Published July 1983
| Published
Journal Article
Open
The optical flare
- Creators
- Zirin, H.
Chicago
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Abstract
Optical observationd now present considerable information on the flare process. It is always associated with filaments and with simplification of existing magnetic connections, and it arises from the emergence and expansion of new flux. The optical flare divides into impulsive phase, with multiple flashes along the neutral line, and thermal phase, with two-ribbon expansion. The former bears some resemblance to tearing mode phenomena. The appearance of loops in emission requires very high densities in those phenomena. The ratios of the hydrogen lines, the excitation of HeII 4686, and the relation of vertical to horizontal structure all remain to be explained.
Additional Information
© 1983 Kluwer Academic Publishers. Provided by the NASA Astrophysics Data System. Issue Date: July 1983. This survey has been prepared during my stay at Meudon. I thank Dr. Henoux for his hospitality, and the Ministère d'Etat à la Recherche et à la Technologie for a grant supporting my visit. The research at Big Bear was supported by the National Science Foundation under ATM-8112698 and by NASA under NGL 05 002 034.Attached Files
Published - 1983SoPh___86__173Z.pdf
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1983SoPh___86__173Z.pdf
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Additional details
- Eprint ID
- 103651
- Resolver ID
- CaltechAUTHORS:20200602-154758458
- NSF
- ATM-8112698
- NASA
- NGL 05 002 034
- Created
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2020-06-02Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field