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A flare-triggered heating of a quiescent filament
Ji, HS; Wang, H; Spirock, TJ; Qiu, J; Yang, G; Goode, PR
Source PublicationSOLAR PHYSICS
AbstractUsing data obtained with the 20-cm Ha full-disk telescope at Big Bear Solar Observatory and Fe XII Angstrom 195 & FIT on SOHO, we analyze a sudden disappearance event of a quiescent filament in detail. The filament was located along the common boundary of the active regions NOAA 9672 (S19 E13) and NOAA 9673 (N03 E18). The filament disappeared during a time interval between 17:59 UT and 19:47 UT on 22 October 2001 immediately after the onset of a major flare, which occurred in the active region NOAA 9672. At about 23:23 UT of the same day, the filament began to reappear in Ha and, after about 15 hours, the filament recovered to its steady state with its size being slightly smaller than that before its disappearance. This filament disappearance event belongs to the thermal type of sudden filament disappearances, which is caused by an input of additional heat. The heating mechanism that leads to sudden thermal disappearances of quiescent filaments is still not well understood. This simple event, due to the explicit cause and effect relationship between the flare and the disappearance of the filament, shows us that the flare triggered some kind of heating mechanism which continued several hours. The heat may come from the flare via heat conduction from its ribbon or from the excitation of dissipating Alfven waves. However, from the data analysis, we conclude that the flare triggered an in-situ heating, which is likely caused by magnetic reconnection.
KeywordAlfven Waves Resonant Absorption Rigid Rotation Disappearances
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000181071700015
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.New Jersey Inst Technol, Big Bear Solar Observ, Big Bear City, CA 92314 USA
2.Purple Mt Observ, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
Ji, HS,Wang, H,Spirock, TJ,et al. A flare-triggered heating of a quiescent filament[J]. SOLAR PHYSICS,2002,211(1-2):221-229.
APA Ji, HS,Wang, H,Spirock, TJ,Qiu, J,Yang, G,&Goode, PR.(2002).A flare-triggered heating of a quiescent filament.SOLAR PHYSICS,211(1-2),221-229.
MLA Ji, HS,et al."A flare-triggered heating of a quiescent filament".SOLAR PHYSICS 211.1-2(2002):221-229.
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