A statistical study of RHESSI flares
文献类型：期刊论文
| 作者 | Su, Yang; Gan, W. Q.; Li, Y. P. |
| 刊名 | SOLAR PHYSICS
 |
| 出版日期 | 2006-10-01 |
| 卷号 | 238期号:1页码:61-72 |
| 关键词 | X-RAY-BURSTS SOLAR-FLARES FREQUENCY-DISTRIBUTIONS PARAMETERS |
| ISSN号 | 0038-0938 |
| 英文摘要 | A statistical analysis of RHESSI X-ray flares in the 12-25 keV band during the period from February 2002 to June 2005 is presented. We found that a power-law with an index of 1.80 +/- 0.02 can fit well the frequency distribution of the peak count rates. This power-law does not change significantly with time. However, the frequency distribution of the flare durations cannot be fitted well by a single power-law. There is a weak correlation between the peak count rates and the characteristic times like rise times, decay times, or durations. But the correlation between the rise times and decay times seems to be strong. We discuss the results obtained and compare them with previous works. The frequency distribution of rise times for the sub-group events with a similar magnitude of peak count rates is also shown. In particular, we propose a new parameter R-a , the growth factor of the count rate, defined as the peak count rate divided by the rise time, to reflect the characteristics of the rising phases of flares. The distribution of R-a is shown and discussed. |
| 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] | X-RAY-BURSTS ; SOLAR-FLARES ; FREQUENCY-DISTRIBUTIONS ; PARAMETERS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000241456200005 |
| 公开日期 | 2012-02-07 |
| 源URL | [http://159.226.72.40/handle/332002/3586]  |
| 专题 | 紫金山天文台_太阳高能及相关物理过程研究团组 |
| 作者单位 | Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, Yang,Gan, W. Q.,Li, Y. P.. A statistical study of RHESSI flares[J]. SOLAR PHYSICS,2006,238(1):61-72. |
| APA | Su, Yang,Gan, W. Q.,&Li, Y. P..(2006).A statistical study of RHESSI flares.SOLAR PHYSICS,238(1),61-72. |
| MLA | Su, Yang,et al."A statistical study of RHESSI flares".SOLAR PHYSICS 238.1(2006):61-72. |
入库方式： OAI收割
来源：紫金山天文台
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