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Non-LTE Calculations of the Mgi12.32 mu m Line in a Flaring Atmosphere
Hong, Jie1,2,3; Bai, Xianyong2,4; Li, Ying5; Ding, M. D.1,3; Deng, Yuanyong2,4
2020-08-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume898Issue:2Pages:7
AbstractThe infrared Mgilines near 12 mu m are a pair of emission lines that are magnetically sensitive and have been used to measure solar magnetic fields. Here we calculate the response of the Mgi12.32 mu m line during a flare and find that in our modeling this line has a complicated behavior. At the beginning of the flare heating, this line shows an intensity dimming at the line center. The intensity then increases when heating continues, with increasing contributions from the heated layers in the chromosphere. The line formation height and the line width also increase as a result. As for the polarized line profiles, we find that flare heating tends to decrease the Zeeman splitting width and attenuates the StokesVlobe intensity. The wider features in the StokesVprofiles are more pronounced during flare heating, which should be considered when performing magnetic field inversions.
KeywordSolar chromosphere Solar photosphere Radiative transfer simulations Solar flare spectra Infrared astronomy
Funding OrganizationNSFC ; NSFC ; NKBRSF ; NKBRSF ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; CAS Pioneer Talents Program ; CAS Pioneer Talents Program ; NSFC ; NSFC ; NKBRSF ; NKBRSF ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; CAS Pioneer Talents Program ; CAS Pioneer Talents Program ; NSFC ; NSFC ; NKBRSF ; NKBRSF ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; CAS Pioneer Talents Program ; CAS Pioneer Talents Program ; NSFC ; NSFC ; NKBRSF ; NKBRSF ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; CAS Pioneer Talents Program ; CAS Pioneer Talents Program
DOI10.3847/1538-4357/ab9c21
WOS KeywordSOLAR MAGNETIC-FIELD ; MICRON EMISSION-LINES ; MG-I ; MODELS
Language英语
Funding ProjectNSFC[11903020] ; NSFC[11733003] ; NSFC[11427901] ; NSFC[11873062] ; NSFC[11873095] ; NSFC[11533005] ; NSFC[11961131002] ; NKBRSF[2014CB744203] ; CAS Key Laboratory of Solar Activity[KLSA201904] ; CAS Pioneer Talents Program[XDA15052200] ; CAS Pioneer Talents Program[XDA15320301] ; CAS Pioneer Talents Program[XDA15320103]
Funding OrganizationNSFC ; NSFC ; NKBRSF ; NKBRSF ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; CAS Pioneer Talents Program ; CAS Pioneer Talents Program ; NSFC ; NSFC ; NKBRSF ; NKBRSF ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; CAS Pioneer Talents Program ; CAS Pioneer Talents Program ; NSFC ; NSFC ; NKBRSF ; NKBRSF ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; CAS Pioneer Talents Program ; CAS Pioneer Talents Program ; NSFC ; NSFC ; NKBRSF ; NKBRSF ; CAS Key Laboratory of Solar Activity ; CAS Key Laboratory of Solar Activity ; CAS Pioneer Talents Program ; CAS Pioneer Talents Program
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000557459400001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/82374
Collection中国科学院国家天文台
Corresponding AuthorHong, Jie
Affiliation1.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, 20 Datun Rd, Beijing 100012, Peoples R China
3.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210023, Peoples R China
4.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210033, Peoples R China
Recommended Citation
GB/T 7714
Hong, Jie,Bai, Xianyong,Li, Ying,et al. Non-LTE Calculations of the Mgi12.32 mu m Line in a Flaring Atmosphere[J]. ASTROPHYSICAL JOURNAL,2020,898(2):7.
APA Hong, Jie,Bai, Xianyong,Li, Ying,Ding, M. D.,&Deng, Yuanyong.(2020).Non-LTE Calculations of the Mgi12.32 mu m Line in a Flaring Atmosphere.ASTROPHYSICAL JOURNAL,898(2),7.
MLA Hong, Jie,et al."Non-LTE Calculations of the Mgi12.32 mu m Line in a Flaring Atmosphere".ASTROPHYSICAL JOURNAL 898.2(2020):7.
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