NAOC Open IR  > 太阳物理研究部
Distribution of helical properties of solar magnetic fields
Kuzanyan, KM; Lamburt, VG; Zhang, HQ; Bao, SD
2003-06-01
Source PublicationCHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
Volume3Issue:3Pages:257-265
AbstractWe summarize studies of helical properties of solar magnetic fields such as current helicity and twist of magnetic fields in solar active regions (ARs), that are observational tracers of the alpha-effect in the solar convective zone (SCZ). Information on their spatial distribution is obtained by analysis of systematic magnetographic observations of active regions taken at Huairou Solar Observing Station of National Astronomical Observatories of Chinese Academy of Sciences. The main property is that the tracers of the alpha-effect are antisymmetric about the solar equator. Identifying longitudinal migration of active regions with their individual rotation rates and taking into account the internal differential rotation law within the SCZ known from helioseismology, we deduce the distribution of the effect over depth. We have found evidence that the alpha-effect changes its value and sign near the bottom of the SCZ, and this is in accord with the theoretical studies and numerical simulations. We discuss other regularities which can be revealed by further analysis such as possible dependence on longitude, time, and magnetic. field strength, etc.
KeywordSun : Activity Sun : Magnetic Fields
Indexed BySCI
Language英语
WOS IDWOS:000183615600008
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8460
Collection太阳物理研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.IZMIRAN, Heliophy Lab, Troitsk 142190, Russia
3.Moscow MV Lomonosov State Univ, Fac Math & Mech, Moscow 119890, Russia
Recommended Citation
GB/T 7714
Kuzanyan, KM,Lamburt, VG,Zhang, HQ,et al. Distribution of helical properties of solar magnetic fields[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2003,3(3):257-265.
APA Kuzanyan, KM,Lamburt, VG,Zhang, HQ,&Bao, SD.(2003).Distribution of helical properties of solar magnetic fields.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,3(3),257-265.
MLA Kuzanyan, KM,et al."Distribution of helical properties of solar magnetic fields".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 3.3(2003):257-265.
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