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Analysis of the He I chromosphere in relation to the magnetic field activity over solar cycle time periods
Li, K. J.1,2,3; Feng, W.4
2020-09-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume497Issue:1Pages:969-975
AbstractSolar synoptic maps of both He I 10 830 angstrom intensity and the magnetic field, which are observed by the Vacuum Telescope at National Solar Observatory/Kitt Peak from 2005 July to 2013 March are utilized to study relationship of He I intensity of the weakly magnetized chromosphere with the respective magnetic field strength. Strong absorption in He I intensity presents the butterfly-pattern latitude migration zone as active regions do, indicating that strong magnetic field corresponds to high-temperature structures of the active chromosphere. For He I intensity and magnetic field strength, their distribution at the time-latitude coordinate and their time series at each of the 180 measurement latitude are found to be significantly negatively correlated with each other in most cases. When a solar hemisphere is divided into three latitude bands: low, middle, and high latitude bands, and even after large magnetic field values not taken into account, they are still negatively correlated in most cases, and further when large magnetic field values are subtracted He I intensity varies more sensitively with magnetic field strength than the corresponding cases when large magnetic field values are not subtracted. He I intensity in the quiet chromosphere thus mainly presents a negative correlation with the magnetic field, and the heating of the quiet chromosphere is inferred to be caused mainly by small-scale magnetic elements.
KeywordSun: activity Sun: atmosphere Sun: chromosphere
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; national project for large scale scientific facilities ; national project for large scale scientific facilities ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; national project for large scale scientific facilities ; national project for large scale scientific facilities ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; national project for large scale scientific facilities ; national project for large scale scientific facilities ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; national project for large scale scientific facilities ; national project for large scale scientific facilities ; Chinese Academy of Sciences ; Chinese Academy of Sciences
DOI10.1093/mnras/staa1973
WOS KeywordBRIGHT POINTS ; ANGSTROM ; LINE
Language英语
Funding ProjectNational Natural Science Foundation of China[11973085] ; National Natural Science Foundation of China[11903077] ; National Natural Science Foundation of China[11803086] ; National Natural Science Foundation of China[11703085] ; National Natural Science Foundation of China[11633008] ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; national project for large scale scientific facilities[2019YFA0405001] ; Chinese Academy of Sciences
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; national project for large scale scientific facilities ; national project for large scale scientific facilities ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; national project for large scale scientific facilities ; national project for large scale scientific facilities ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; national project for large scale scientific facilities ; national project for large scale scientific facilities ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; Yunnan Ten-Thousand Talents Plan (the Yunling-Scholar Project) ; national project for large scale scientific facilities ; national project for large scale scientific facilities ; Chinese Academy of Sciences ; Chinese Academy of Sciences
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000574919600070
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/81842
Collection中国科学院国家天文台
Corresponding AuthorLi, K. J.; Feng, W.
Affiliation1.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China
2.Chinese Acad Sci, Ctr Astron Megasci, 20A Datun Rd, Beijing 100012, Peoples R China
3.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China
4.Kunming Univ Sci & Technol, Res Ctr Anal & Measurement, Kunming 650093, Yunnan, Peoples R China
Recommended Citation
GB/T 7714
Li, K. J.,Feng, W.. Analysis of the He I chromosphere in relation to the magnetic field activity over solar cycle time periods[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,497(1):969-975.
APA Li, K. J.,&Feng, W..(2020).Analysis of the He I chromosphere in relation to the magnetic field activity over solar cycle time periods.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,497(1),969-975.
MLA Li, K. J.,et al."Analysis of the He I chromosphere in relation to the magnetic field activity over solar cycle time periods".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 497.1(2020):969-975.
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