An empirical method to correct the saturation seen in the SOHO/MDI magnetograms
文献类型：期刊论文
| 作者 | Gao, George Zhendong1; Zhao, Yong-Heng1 ; Liu, Yang2; Zhao Yongheng
|
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2010-10-01 |
| 卷号 | 10期号:10页码:1041-1048 |
| 关键词 | Sun: solar magnetic field Sun: MDI magnetograms Sun:Saturation |
| 英文摘要 | The magnetic field of the umbrae is sometimes found to be saturated in the magnetograms taken by the Michelson Doppler Imager (MDI) onboard the Solar and Heliospheric Observatory (SOHO). It is suggested that the combination of the low intensity of sunspot umbrae and the limitation of the 15-bit onboard numerical data acquisition leads to this saturation. In this paper, we propose to use the MDI's intensity data to correct this saturation. This method is based on the well-established relationship between the continuum intensity and the magnetic field (the so-called I-B relationship). A comparison between the corrected magnetic field and the data taken by the Stokes-Polarimeter of the Solar Optical Telescope (SOT/SP) onboard Hinode shows a reasonable agreement, suggesting that this correction is effective. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000283763000007 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7633]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ China, Beijing 100012, Peoples R China 2.Stanford Univ, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA |
| 推荐引用方式 GB/T 7714 | Gao, George Zhendong,Zhao, Yong-Heng,Liu, Yang,et al. An empirical method to correct the saturation seen in the SOHO/MDI magnetograms[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2010,10(10):1041-1048. |
| APA | Gao, George Zhendong,Zhao, Yong-Heng,Liu, Yang,&Zhao Yongheng.(2010).An empirical method to correct the saturation seen in the SOHO/MDI magnetograms.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,10(10),1041-1048. |
| MLA | Gao, George Zhendong,et al."An empirical method to correct the saturation seen in the SOHO/MDI magnetograms".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 10.10(2010):1041-1048. |
入库方式： OAI收割
来源：国家天文台
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