| Multi-wavelength Diagnostics of Bombardment by Non-thermal Particles in Solar Flares |
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| 作者姓名： | Zhi Xu Cheng Fang and Wei-Qun Can Astronomy |
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| 作者单位： | Zhi Xu，Cheng Fang and Wei-Qun Can Astronomy Department of Nanjing University，Nanjing 210093; Purple Mountain Observatory，Chinese Academy of Sciences，Nanjing 210008 |
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| 基金项目： | Supported by the National Natural Science Foundation of China. |
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| 摘 要： | Chromospheric lines, including Ha, Lyα, Lyβand CaⅡK, CaⅡ8542, are systemically and quantitatively investigated with respect to the non-thermal excitation and ionization due to particle beam bombardment for a series of solar semi-empirical atmospheric models. As a result we propose to use the contrast in the integrated intensity of hydrogen lines to estimate the total energy flux of the bombarding beam during the solar flare impulsive phase. Partial frequency redistribution is considered in the Lyαline calculation and a smaller intensity enhancement in the Ha line-centers is found than in the previous results of Fang et al.
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| 关 键 词： | 太阳物理学 太阳耀斑 磁场 波长 太阳活动 |
Multi-wavelength Diagnostics of Bombardment by Non-thermal Particles in Solar Flares |
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| Zhi Xu,Cheng Fang and Wei-Qun Can Astronomy.Multi-wavelength Diagnostics of Bombardment by Non-thermal Particles in Solar Flares[J].Chinese Journal of Astronomy and Astrophysics,2005,5(5):519-530. |
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| Authors: | Zhi Xu Cheng Fang Wei-Qun Gan |
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| Institution: | [1]Astronomy Department of Nanjing University, Nanjing 210093 [2]Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008 |
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| Abstract: | |
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| Keywords: | Sun: flare - Sun: chromosphere |
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