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OPTICAL-SPECTRA AND SEMIEMPIRICAL MODEL OF WHITE-LIGHT FLARE
DING, MD; FANG, C; GAN, WQ; OKAMOTO, T
1994-07-10
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume429Issue:2Pages:890-898
Corresponding AuthorDING, MD()
AbstractWe derive a semi-empirical atmospheric model for the 1979 September 19 white-light flare (WLF), based on the observed continuum at 3590-3990 angstrom and the Ca II K line profile. The model has a strongly heated photosphere, but has a chromospheric structure within the range of ordinary flare models. According to this model, the white-light continuum is mainly produced by the H- emission in the photosphere. A negative Balmer jump appears in the continuum spectrum (without considering the line blanketing effect), due to the Balmer continuum absorption in the chromosphere. From the spectral features and model results, the traditional heating mechanisms that are proposed to transport the energy from the corona down to deep layers seem insufficient to fully explain the photospheric heating for this WLF. The heating energy may originate within the photosphere itself. The possible energy release processes are also discussed, but a satisfactory explanation needs further quantitative studies.
KeywordSUN, ATMOSPHERE SUN, CHROMOSPHERE SUN, FLARES
WOS KeywordTEMPERATURE MINIMUM REGION ; 1982 JUNE 15 ; SOLAR-FLARES ; CHROMOSPHERIC FLARE ; CONTINUUM EMISSION ; LINE PROFILES ; H-ALPHA
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:A1994NW01400040
PublisherUNIV CHICAGO PRESS
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/8515
Collection期刊(老文献)
Corresponding AuthorDING, MD
Affiliation1.CCAST,WORLD LAB,BEIJING 100080,PEOPLES R CHINA
2.CHINESE ACAD SCI,PURPLE MT OBSERV,NANJING 210008,PEOPLES R CHINA
3.NATL ASTRON OBSERV,MITAKA,TOKYO 181,JAPAN
Recommended Citation
GB/T 7714
DING, MD,FANG, C,GAN, WQ,et al. OPTICAL-SPECTRA AND SEMIEMPIRICAL MODEL OF WHITE-LIGHT FLARE[J]. ASTROPHYSICAL JOURNAL,1994,429(2):890-898.
APA DING, MD,FANG, C,GAN, WQ,&OKAMOTO, T.(1994).OPTICAL-SPECTRA AND SEMIEMPIRICAL MODEL OF WHITE-LIGHT FLARE.ASTROPHYSICAL JOURNAL,429(2),890-898.
MLA DING, MD,et al."OPTICAL-SPECTRA AND SEMIEMPIRICAL MODEL OF WHITE-LIGHT FLARE".ASTROPHYSICAL JOURNAL 429.2(1994):890-898.
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