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

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Central European Astrophysical Bulletin

ISSN

1845-8319

e-ISSN

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Svazek periodika

37

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

HR - Chorvatská republika

Počet stran výsledku

8

Strana od-do

513-520

Kód UT WoS článku

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EID výsledku v databázi Scopus

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