中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Data reduction and calibration of the FMG onboard ASO-S

文献类型:期刊论文

作者Su, Jiang-Tao4,5; Bai, Xian-Yong4,5; Chen, Jie5; Guo, Jing-Jing5; Liu, Suo5; Wang, Xiao-Fan5; Xu, Hai-Qing5; Yang, Xiao5; Song, Yong-Liang5; Deng, Yuan-Yong4,5
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2019-11-01
卷号19期号:11页码:16
ISSN号1674-4527
关键词Sun: photosphere Sun: magnetic fields Sun: calibration
DOI10.1088/1674-4527/19/11/161
通讯作者Bai, Xian-Yong(xybai@bao.ac.cn)
英文摘要The Full-disk vector MagnetoGraph (FMG) instrument will carry out polarization observations at one wavelength position of the Fe I 5324.179 angstrom spectral line. This paper describes how to choose this single wavelength position, the relevant data-processing and the magnetic field calibrations based on the measured polarization signals at one single wavelength position. It is found that solar radial Doppler velocity, which can cause the spectral line to shift, is a disadvantageous factor for the linear calibration at one wavelength position. Observations at two symmetric wavelength positions may significantly reduce the wavelength shift effect (similar to 75%), but simulations show that such polarization signals located at the solar limbs (e.g., beyond the longitude range of +/- 30 degrees) are not free from the effect completely. In future work, we plan to apply machine learning techniques to calibrate vector magnetic fields, or employ full Stokes parameter profile inversion techniques to obtain accurate vector magnetic fields, in order to complement the linear calibration at the single wavelength position.
WOS关键词VECTOR MAGNETIC-FIELDS ; FARADAY-ROTATION ; MAGNETOGRAPH ; TELESCOPE ; AMBIGUITY ; REGION ; SPACE ; TESTS
WOS研究方向Astronomy & Astrophysics
语种英语
出版者NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
WOS记录号WOS:000507468400007
源URL[http://libir.pmo.ac.cn/handle/332002/35552]  
专题中国科学院紫金山天文台
通讯作者Bai, Xian-Yong
作者单位1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Innovat Acad Microsatellites, Shanghai 201203, Peoples R China
3.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China
4.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714
Su, Jiang-Tao,Bai, Xian-Yong,Chen, Jie,et al. Data reduction and calibration of the FMG onboard ASO-S[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2019,19(11):16.
APA Su, Jiang-Tao.,Bai, Xian-Yong.,Chen, Jie.,Guo, Jing-Jing.,Liu, Suo.,...&Gan, Wei-Qun.(2019).Data reduction and calibration of the FMG onboard ASO-S.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,19(11),16.
MLA Su, Jiang-Tao,et al."Data reduction and calibration of the FMG onboard ASO-S".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 19.11(2019):16.

入库方式: OAI收割

来源:紫金山天文台

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