On a Signature of a Flux-rope Formation by Vortex Motions in its Footpoint

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F13%3A00398884" target="_blank" >RIV/67985815:_____/13:00398884 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
On a Signature of a Flux-rope Formation by Vortex Motions in its Footpoint
Original language description
We analyzed H? spectrograms and slit-jaw filtergrams of active regions NOAA 10311 and 10314 observed by the Ondřejov flare spectrograph near the western limb on March 19, 2003. Several pre-flares and medium flares C, M, X (according to GOES classification) occurred in this active region during our period of observation. We observed a process of intensive creation of an active region filament. Then the filament changed its contrast in relation to the surrounding chromosphere. From details observed in thefiltergrams and spectra we conclude that during this process the filament/flux-rope was twisted by vortex motions in its footpoint. The energy accumulated gradually in the configuration of magnetic field was then released during a series of flares. We discuss the observed phenomena and try to explain them in frame of generally accepted models of physical processes in solar flares.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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