On the time evolution of brightness, volume and height of a coronal source in an M-class flare
文献类型：期刊论文
| 作者 | Firoz, Kazi A.; Gan, W. Q.; Li, Y. P.; Rodriguez-Pacheco, J.; Su, Y. |
| 刊名 | ASTROPHYSICS AND SPACE SCIENCE
 |
| 出版日期 | 2017 |
| 卷号 | 362期号:6页码:aan3211- |
| 英文摘要 | We study brightness, volume and heights of the X-ray thermal emission components for an M-class solar flare on 17 May 2012. Based on the RHESSI data availability, we present the results for 01:42-01:58 UT over the lateflare phase. It is observed that the spatial evolution of the thermal emission components 6-12 and 12-18 keV are well associated with the hottest plasma in the corona. Results show that the ascending height (similar to 1.35x10(4) km) and speed (similar to 14.0 kms(-1)) of coronal source component 6-12 keV is slightly smaller than the ascending height (similar to 1.45x10(4) km) and speed (similar to 15.1 kms(-1)) of the coronal source component 12-18 keV. Mean flux intensity (I-mean) of the 6-12 keV maintained a good fit (chi(2) = 0.41) with the corresponding volume (V) following strongly the power law [I-mean = (15.8 +/- 0.21) V-1.28 +/- 0.03]. In contrast, the 12-18 keV maintained a weak fit (chi(2) = 2.37) following still the power law [I-mean = (0.19 +/- 0.01) V-1.88 +/- 0.16]. The power law indices (-1.28 +/- 0.03;-1.88 +/- 0.16) obtained by the observational analysis slightly differ from the power law index (-1.67) obtained by a theoretical model. The observations are consistent with adiabatic expansion of the coronal source component. |
| 语种 | 英语 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/17388]  |
| 专题 | 中国科学院紫金山天文台 |
| 推荐引用方式 GB/T 7714 | Firoz, Kazi A.,Gan, W. Q.,Li, Y. P.,et al. On the time evolution of brightness, volume and height of a coronal source in an M-class flare[J]. ASTROPHYSICS AND SPACE SCIENCE,2017,362(6):aan3211-. |
| APA | Firoz, Kazi A.,Gan, W. Q.,Li, Y. P.,Rodriguez-Pacheco, J.,&Su, Y..(2017).On the time evolution of brightness, volume and height of a coronal source in an M-class flare.ASTROPHYSICS AND SPACE SCIENCE,362(6),aan3211-. |
| MLA | Firoz, Kazi A.,et al."On the time evolution of brightness, volume and height of a coronal source in an M-class flare".ASTROPHYSICS AND SPACE SCIENCE 362.6(2017):aan3211-. |
入库方式： OAI收割
来源：紫金山天文台
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