COMPARATIVE STUDY OF SOLAR HXR FLARE SPECTRA IN LOOPTOP AND FOOTPOINT SOURCES
文献类型：期刊论文
| 作者 | Shao, Chengwen1,2; Huang, Guangli1 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2009-01-20 |
| 卷号 | 691期号:1页码:299-305 |
| 关键词 | Sun: flares Sun: X-rays |
| ISSN号 | 0004-637X |
| 英文摘要 | In this paper, 28 peaks and subpeaks are selected in 13 RHESSI hard X-ray (HXR) flares with a single-loop structure. One looptop (LT) source is observed at lower energies, and two footpoint (FP) sources are observed at higher energies in these flares. The HXR flare spectra in the LT and FP sources are studied statistically. It is found that the LT spectral index (gamma(LT)) is well correlated with the FP spectral index (gamma(FP)) for larger values of gamma(LT), while gamma(LT) is anticorrelated with gamma(FP) for smaller values of gamma(LT). This new statistical result may be explained by the different relationships between the photon fluxes and spectral indices in the LT and FP sources, as well as by the nonthermal thin-target model with a larger low-cutoff energy. |
| 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] | HARD X-RAY ; STOCHASTIC ACCELERATION ; PARTICLE-ACCELERATION ; MAGNETIC RECONNECTION ; NONTHERMAL ELECTRONS ; PHOTOSPHERIC ALBEDO ; LOW-ENERGY ; EVOLUTION ; MICROWAVE ; BURSTS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000263196600024 |
| 公开日期 | 2011-12-08 |
| 源URL | [http://159.226.72.40/handle/332002/1555]  |
| 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.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shao, Chengwen,Huang, Guangli. COMPARATIVE STUDY OF SOLAR HXR FLARE SPECTRA IN LOOPTOP AND FOOTPOINT SOURCES[J]. ASTROPHYSICAL JOURNAL,2009,691(1):299-305. |
| APA | Shao, Chengwen,&Huang, Guangli.(2009).COMPARATIVE STUDY OF SOLAR HXR FLARE SPECTRA IN LOOPTOP AND FOOTPOINT SOURCES.ASTROPHYSICAL JOURNAL,691(1),299-305. |
| MLA | Shao, Chengwen,et al."COMPARATIVE STUDY OF SOLAR HXR FLARE SPECTRA IN LOOPTOP AND FOOTPOINT SOURCES".ASTROPHYSICAL JOURNAL 691.1(2009):299-305. |
入库方式： OAI收割
来源：紫金山天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。