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DIAGNOSTICS OF NONTHERMAL PROCESSES IN CHROMOSPHERIC FLARES .2. H-ALPHA AND CAII K-LINE PROFILES FOR AN ATMOSPHERE BOMBARDED BY 100 KEV-1 MEV PROTONS
HENOUX, JC; FANG, C; GAN, WQ
1993-07-01
Source PublicationASTRONOMY & ASTROPHYSICS
ISSN0004-6361
Volume274Issue:3Pages:923-930
AbstractThe effects on the Halpha line profile of non-thermal excitation and ionization of hydrogen by a 100 KeV-1 MeV proton beam have been investigated. Non-LTE Halpha line profiles have been calculated for the temperature distributions of semiempirical flares models F1 and F2 (Machado et al. 1980). For reasonable values of the beam energy flux and power index, the hydrogen lines are greatly strengthened. However, contrary to the case of an electron bombarded atmosphere, the line is not broadened, and no central reversal appears. These effects, alone or in conjunction with linear polarization measurements or Lyalpha red wing observations, can be used to diagnose proton beam bombardment.
KeywordLine, Profiles Radiative Transfer Sun, Flares
Subject Area天文和天体物理
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordWHITE-LIGHT FLARES ; SEMI-EMPIRICAL MODELS ; SOLAR-FLARES ; 2-RIBBON FLARES ; BEAMS ; IONIZATION ; HYDROGEN ; POLARIZATION ; EXCITATION ; EMISSION
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:A1993LP33400031
Citation statistics
Cited Times:42[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/8537
Collection期刊(老文献)
Affiliation1.ACAD SINICA, PURPLE MT OBSERV, NANJING, PEOPLES R CHINA
2.NANJING UNIV, DEPT ASTRON, NANJING, PEOPLES R CHINA
Recommended Citation
GB/T 7714
HENOUX, JC,FANG, C,GAN, WQ. DIAGNOSTICS OF NONTHERMAL PROCESSES IN CHROMOSPHERIC FLARES .2. H-ALPHA AND CAII K-LINE PROFILES FOR AN ATMOSPHERE BOMBARDED BY 100 KEV-1 MEV PROTONS[J]. ASTRONOMY & ASTROPHYSICS,1993,274(3):923-930.
APA HENOUX, JC,FANG, C,&GAN, WQ.(1993).DIAGNOSTICS OF NONTHERMAL PROCESSES IN CHROMOSPHERIC FLARES .2. H-ALPHA AND CAII K-LINE PROFILES FOR AN ATMOSPHERE BOMBARDED BY 100 KEV-1 MEV PROTONS.ASTRONOMY & ASTROPHYSICS,274(3),923-930.
MLA HENOUX, JC,et al."DIAGNOSTICS OF NONTHERMAL PROCESSES IN CHROMOSPHERIC FLARES .2. H-ALPHA AND CAII K-LINE PROFILES FOR AN ATMOSPHERE BOMBARDED BY 100 KEV-1 MEV PROTONS".ASTRONOMY & ASTROPHYSICS 274.3(1993):923-930.
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