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 |
DOI | 10.1088/1674-4527/19/11/161 |
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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