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Some issues in diagnostics of solar chromospheric magnetic fields with the Mg b_2 line
Bai Xianyong1; Deng Yuanyong2; Su Jiangtao2; Wang Guoping2
2014
Source PublicationResearch in Astronomy and Astrophysics
ISSN1674-4527
Volume14Issue:2Pages:193
AbstractUp to now, exact measurements of chromospheric magnetic fields have not been as successful as those done in the photosphere. We are currently engaging in diagnostics of chromospheric magnetic fields with the Mg b(2) line by employing the Multi-Channel Solar Telescope at Huairou Solar Observing Station. Therefore, how to improve accuracy in the measurement is the main issue of our present study. To this end, we first study linear calibration coefficients for longitudinal and transverse components of chromospheric fields, which vary with wavelength, in the case of a weak field assumption. Then the polarization crosstalk introduced by instruments is analyzed in detail with two numerical simulation methods. Comparisons of the polarization signals between cases with and without correction are presented. The result indicates that polarization accuracy is greatly improved after crosstalk correction.
Language英语
Funding Project[National Basic Research Program of China (973 Program)] ; [National Natural Science Foundation of China] ; [National Astronomical Observatories] ; [CAS] ; [specialized research fund]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/42597
Collection中国科学院国家天文台
Affiliation1.中国科学院大学
2.中国科学院国家天文台
Recommended Citation
GB/T 7714
Bai Xianyong,Deng Yuanyong,Su Jiangtao,et al. Some issues in diagnostics of solar chromospheric magnetic fields with the Mg b_2 line[J]. Research in Astronomy and Astrophysics,2014,14(2):193.
APA Bai Xianyong,Deng Yuanyong,Su Jiangtao,&Wang Guoping.(2014).Some issues in diagnostics of solar chromospheric magnetic fields with the Mg b_2 line.Research in Astronomy and Astrophysics,14(2),193.
MLA Bai Xianyong,et al."Some issues in diagnostics of solar chromospheric magnetic fields with the Mg b_2 line".Research in Astronomy and Astrophysics 14.2(2014):193.
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