Radiative and conductive cooling in a solar flare
文献类型：期刊论文
| 作者 | Ning, Zongjun1,2 ; Li, Dong1,2
|
| 刊名 | ASTROPHYSICS AND SPACE SCIENCE
 |
| 出版日期 | 2012-03-01 |
| 卷号 | 338期号:1页码:15-21 |
| 关键词 | Sun: flares Sun: X-ray bursts Hard |
| ISSN号 | 0004-640X |
| 英文摘要 | We investigate the radiative and conductive cooling in the solar flare observed by RHESSI on 2005 September 13. The radiative and conductive loss energies are estimated from the observations after the flare onset. Consistent with previous findings, the cooling is increased with time, especially the radiation becomes remarkable on the later phase of flare. According our method, about half of thermal energy is traced by RHESSI soft X-rays, while the other half is lost by the radiative (similar to 38%) and conductive (similar to 9%) cooling at end of the hard X-rays in this event. The non-thermal energy input of P-nth (inferred from RHESSI hard X-ray spectrum) is not well correlated with the derivative of thermal energy of dE(th)/dt (required to radiate the RHESSI soft X-ray flux and spectrum) alone. However, after consideration the radiation and conduction, a high correlation is obtained between the derivative of total thermal energy (dE(th)+E-rad+E-cond/dt) and nonthermal energy input (P(nt)h) from the flare start to end, indicating the relative importance of conductive and direct radiative losses during the solar flare development. Ignoring the uncertainties to estimate the energy from the observations, we find that about similar to 12% fraction of the known energy is transferred into the thermal energy for the 2005 September 13 flare. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | 2005 SEPTEMBER 13 ; ELECTRON ACCELERATION ; MICROWAVE EMISSION ; SPECTRAL EVOLUTION ; RHESSI MICROFLARES ; ENERGY CUTOFFS ; MODEL ; TEMPERATURES ; EVAPORATION ; ERUPTION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000299848400004 |
| 公开日期 | 2013-01-31 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/8133]  |
| 专题 | 紫金山天文台_太阳活动的多波段观测研究团组 |
| 作者单位 | 1.Acad Sinica, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Key Lab Dark Matter & Space Astron, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ning, Zongjun,Li, Dong. Radiative and conductive cooling in a solar flare[J]. ASTROPHYSICS AND SPACE SCIENCE,2012,338(1):15-21. |
| APA | Ning, Zongjun,&Li, Dong.(2012).Radiative and conductive cooling in a solar flare.ASTROPHYSICS AND SPACE SCIENCE,338(1),15-21. |
| MLA | Ning, Zongjun,et al."Radiative and conductive cooling in a solar flare".ASTROPHYSICS AND SPACE SCIENCE 338.1(2012):15-21. |
入库方式： OAI收割
来源：紫金山天文台
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