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Estimate of coronal magnetic fields from contour maps of the intensity and polarization degree of the burst on 1992 October 27
Yu, XF; Yao, JX; Gibson, S; Suess, ST
2002
Source PublicationSTRUCTURE, ENERGETICS AND DYNAMICS OF THE CORONA AND THE HELIOSPHERE DURING THE RISING PHASE OF THE 23RD SOLAR CYCLE
Volume29Issue:3Pages:469-474
AbstractIn this paper contour maps at 17 GHz of the 1992 October 27 solar burst are analysed. Using a nonthermal inhomogeneous model of the radio source, variations of calculated brightness temperature with distance from the projected center of the source is in better agreement with the observed map at 0 1 : 45 : 29.889 UT. The calculation shows that the characteristic magnetic field gradient a,, (magnetic field distribution is B-m(r/r(m))(alphaB) = 2000(r/r(m))(-2)) at the peak of the 17 GHz emission is about 2, magnetic strength B is about 737 G with the magnetic field B-m of the core being 2000 G. On the other hand, from the polarization contour map and the "limiting polarization" concept, we obtain a magnetic moment d = 1.4 - 2.5 x 10(32) cgs units, and a coronal imigiietic field B = 20 - 30 G at the height of 1.7 - 1.9 x 10(10) cm. (C) 2002 COSPAR. Published by Elsevier Science Ltd. All rights reserved.
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
WOS KeywordEMISSION ; FLARE
Indexed ByISTP ; SCI
Language英语
WOS Research AreaEngineering ; Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
WOS SubjectEngineering, Aerospace ; Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS IDWOS:000174269800028
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/7933
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.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Yu, XF,Yao, JX,Gibson, S,et al. Estimate of coronal magnetic fields from contour maps of the intensity and polarization degree of the burst on 1992 October 27[J]. STRUCTURE, ENERGETICS AND DYNAMICS OF THE CORONA AND THE HELIOSPHERE DURING THE RISING PHASE OF THE 23RD SOLAR CYCLE,2002,29(3):469-474.
APA Yu, XF,Yao, JX,Gibson, S,&Suess, ST.(2002).Estimate of coronal magnetic fields from contour maps of the intensity and polarization degree of the burst on 1992 October 27.STRUCTURE, ENERGETICS AND DYNAMICS OF THE CORONA AND THE HELIOSPHERE DURING THE RISING PHASE OF THE 23RD SOLAR CYCLE,29(3),469-474.
MLA Yu, XF,et al."Estimate of coronal magnetic fields from contour maps of the intensity and polarization degree of the burst on 1992 October 27".STRUCTURE, ENERGETICS AND DYNAMICS OF THE CORONA AND THE HELIOSPHERE DURING THE RISING PHASE OF THE 23RD SOLAR CYCLE 29.3(2002):469-474.
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