NAOC Open IR
Estimates of Current Helicity and Tilt of Solar Active Regions and Joy's Law
Kuzanyan, K.1,2; Kleeorin, N.3,4,5; Rogachevskii, I.3,4,5; Sokoloff, D.6,7; Zhang, H.1
2020-12-01
Source PublicationGEOMAGNETISM AND AERONOMY
ISSN0016-7932
Volume60Issue:8Pages:1032-1037
AbstractThe tilt angle, current helicity and twist of solar magnetic fields can be observed in solar active regions. We carried out estimates of these parameters by two ways. Firstly, we consider the model of turbulent convective cells (super-granules) which have a loop floating structure towards the surface of the Sun. Their helical properties are attained during the rising process in the rotating stratified convective zone. The other estimate is obtained from a simple mean-field dynamo model that accounts magnetic helicity conservation. The both values are shown to be capable to give important contributions to the observable tilt, helicity and twist.
Keywordturbulence mean-field magnetohydrodynamics Sun magnetic field sunspots tilt twist helicity
Funding OrganizationRussian Science Foundation at the Crimean Astrophysical Observatory ; Russian Science Foundation at the Crimean Astrophysical Observatory ; RFBR ; RFBR ; CAS PIFI visiting program ; CAS PIFI visiting program ; RFBR of Russia-NNSF of China joint grant ; RFBR of Russia-NNSF of China joint grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Huairou Solar Observing Station, Chinese Academy of Sciences ; Huairou Solar Observing Station, Chinese Academy of Sciences ; Russian Science Foundation at the Crimean Astrophysical Observatory ; Russian Science Foundation at the Crimean Astrophysical Observatory ; RFBR ; RFBR ; CAS PIFI visiting program ; CAS PIFI visiting program ; RFBR of Russia-NNSF of China joint grant ; RFBR of Russia-NNSF of China joint grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Huairou Solar Observing Station, Chinese Academy of Sciences ; Huairou Solar Observing Station, Chinese Academy of Sciences ; Russian Science Foundation at the Crimean Astrophysical Observatory ; Russian Science Foundation at the Crimean Astrophysical Observatory ; RFBR ; RFBR ; CAS PIFI visiting program ; CAS PIFI visiting program ; RFBR of Russia-NNSF of China joint grant ; RFBR of Russia-NNSF of China joint grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Huairou Solar Observing Station, Chinese Academy of Sciences ; Huairou Solar Observing Station, Chinese Academy of Sciences ; Russian Science Foundation at the Crimean Astrophysical Observatory ; Russian Science Foundation at the Crimean Astrophysical Observatory ; RFBR ; RFBR ; CAS PIFI visiting program ; CAS PIFI visiting program ; RFBR of Russia-NNSF of China joint grant ; RFBR of Russia-NNSF of China joint grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Huairou Solar Observing Station, Chinese Academy of Sciences ; Huairou Solar Observing Station, Chinese Academy of Sciences
DOI10.1134/S0016793220080149
Language英语
Funding ProjectRussian Science Foundation at the Crimean Astrophysical Observatory[RNF 18-12-00131] ; RFBR[18-02-00085] ; CAS PIFI visiting program ; RFBR of Russia-NNSF of China joint grant[19-52-53045 GFEN.a] ; National Natural Science Foundation of China[NSFC 11673033] ; National Natural Science Foundation of China[11427803] ; National Natural Science Foundation of China[11427901] ; National Natural Science Foundation of China[12073040] ; National Natural Science Foundation of China[120730041] ; Huairou Solar Observing Station, Chinese Academy of Sciences
Funding OrganizationRussian Science Foundation at the Crimean Astrophysical Observatory ; Russian Science Foundation at the Crimean Astrophysical Observatory ; RFBR ; RFBR ; CAS PIFI visiting program ; CAS PIFI visiting program ; RFBR of Russia-NNSF of China joint grant ; RFBR of Russia-NNSF of China joint grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Huairou Solar Observing Station, Chinese Academy of Sciences ; Huairou Solar Observing Station, Chinese Academy of Sciences ; Russian Science Foundation at the Crimean Astrophysical Observatory ; Russian Science Foundation at the Crimean Astrophysical Observatory ; RFBR ; RFBR ; CAS PIFI visiting program ; CAS PIFI visiting program ; RFBR of Russia-NNSF of China joint grant ; RFBR of Russia-NNSF of China joint grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Huairou Solar Observing Station, Chinese Academy of Sciences ; Huairou Solar Observing Station, Chinese Academy of Sciences ; Russian Science Foundation at the Crimean Astrophysical Observatory ; Russian Science Foundation at the Crimean Astrophysical Observatory ; RFBR ; RFBR ; CAS PIFI visiting program ; CAS PIFI visiting program ; RFBR of Russia-NNSF of China joint grant ; RFBR of Russia-NNSF of China joint grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Huairou Solar Observing Station, Chinese Academy of Sciences ; Huairou Solar Observing Station, Chinese Academy of Sciences ; Russian Science Foundation at the Crimean Astrophysical Observatory ; Russian Science Foundation at the Crimean Astrophysical Observatory ; RFBR ; RFBR ; CAS PIFI visiting program ; CAS PIFI visiting program ; RFBR of Russia-NNSF of China joint grant ; RFBR of Russia-NNSF of China joint grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Huairou Solar Observing Station, Chinese Academy of Sciences ; Huairou Solar Observing Station, Chinese Academy of Sciences
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000612382300006
PublisherMAIK NAUKA/INTERPERIODICA/SPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/79749
Collection中国科学院国家天文台
Corresponding AuthorKuzanyan, K.
Affiliation1.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China
2.Russian Acad Sci, IZMIRAN, Troitsk 108840, Russia
3.Ben Gurion Univ Negev, Dept Mech Engn, POB 653, IL-84105 Beer Sheva, Israel
4.KTH Royal Inst Technol, Nordita, Stockholm, Sweden
5.Stockholm Univ, Stockholm, Sweden
6.Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119992, Russia
7.Moscow Ctr Fundamental & Appl Math, Moscow 119991, Russia
Recommended Citation
GB/T 7714
Kuzanyan, K.,Kleeorin, N.,Rogachevskii, I.,et al. Estimates of Current Helicity and Tilt of Solar Active Regions and Joy's Law[J]. GEOMAGNETISM AND AERONOMY,2020,60(8):1032-1037.
APA Kuzanyan, K.,Kleeorin, N.,Rogachevskii, I.,Sokoloff, D.,&Zhang, H..(2020).Estimates of Current Helicity and Tilt of Solar Active Regions and Joy's Law.GEOMAGNETISM AND AERONOMY,60(8),1032-1037.
MLA Kuzanyan, K.,et al."Estimates of Current Helicity and Tilt of Solar Active Regions and Joy's Law".GEOMAGNETISM AND AERONOMY 60.8(2020):1032-1037.
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