PMO OpenIR  > 太阳高能及相关物理过程研究团组
An impulsive heating model for the evolution of coronal loops
Feng, Li; Gan, Wei-Qun
2006
Source PublicationCHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
ISSN1009-9271
Volume6Issue:5Pages:608-616
AbstractIt was suggested by Parker that the solar corona is heated by many small energy release events generally called microflares or nanoflares. More. and more observations showed flows and intensity variations in nonflaring loops. Both theories and observations have indicated that the heating of coronal loops should actually be unsteady. Using SOLFTM (Solar Flux Tube Model), we investigate the hydrodynamics of coronal loops undergoing different manners of impulsive heating with the same total energy deposition. The half length of the loops is 110 Mm, a typical length of active region loops. We divide the loops into two categories: loops that experience catastrophic cooling and loops that do not. It is found that when the nanoflare heating sources are in the coronal part, the loops are in non-catastrophic-cooling state and their evolutions are similar. When the heating is localized below the transition region, the loops evolve in quite different ways. It is shown that with increasing number of heating pulses and inter-pulse time, the catastrophic cooling is weakened, delayed, or even disappears altogether.
KeywordHydrodynamics Sun : Corona Sun : Transition Region
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordTRANSITION-REGION ; SOLAR CORONA ; TRACE ; SIMULATIONS ; DYNAMICS ; EXPLORER
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000241487800013
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/3578
Collection太阳高能及相关物理过程研究团组
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
2.Max Planck Inst Solar Syst Res, D-37191 Katlenburg Lindau, Germany
Recommended Citation
GB/T 7714
Feng, Li,Gan, Wei-Qun. An impulsive heating model for the evolution of coronal loops[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2006,6(5):608-616.
APA Feng, Li,&Gan, Wei-Qun.(2006).An impulsive heating model for the evolution of coronal loops.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,6(5),608-616.
MLA Feng, Li,et al."An impulsive heating model for the evolution of coronal loops".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 6.5(2006):608-616.
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