Hard X-ray imaging of a solar gradual hard X-ray burst on April 1, 1981

doi:10.1007/BF00151323

YNAO OpenIR > 太阳物理研究组

	Hard X-ray imaging of a solar gradual hard X-ray burst on April 1, 1981
	TAKAKURA, T; OHKI, K; SAKURAI, T; WANG, JL; Xuan JY(宣家余); Li SC(李苏川); ZHAO, RY
发表期刊	SOLAR PHYSICS
	1984
卷号	94 期号:2 页码:359-367
DOI	10.1007/BF00151323
产权排序	第4完成单位
收录类别	SCI
摘要	An intense solar X-ray burst occurred on April, 1981. X-ray images of this gradual hard X-ray burst were observed with the hard X-ray telescope aboard the Hinotori satellite for the initial ten minutes of rise and maximum phases of the burst. The hard X-ray images (13-29 keV) look like a large loop without considerable time variation of an elongated main source during the while observation period. The main X-ray source seems to lie along coronal arcade 20,000 km above a neutral line, while a tongue-like subsource may be another large coronal loop (although the whole structure of the X-ray source looks like a large semicircular loop. Both nonthermal and hot thermal (3-4 x 10 K) electrons are contributing to the source image. The ratio of these components changed in a wide range, from 2.3 to 0.4, during the observation, while the image was rather steady. This suggests that both heating and accelerations of electrons are occurring simultaneously in a common source. Energetic electrons of 15-30 keV would be collisionally trapped in the coronal magnetic loops with density of the order of 10 to the 11th/cu cm.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0038-0938
URL	查看原文
WOS记录号	WOS:A1984ABW6700011
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/5999
专题	太阳物理研究组
通讯作者	TAKAKURA, T
推荐引用方式 GB/T 7714	TAKAKURA, T,OHKI, K,SAKURAI, T,et al. Hard X-ray imaging of a solar gradual hard X-ray burst on April 1, 1981[J]. SOLAR PHYSICS,1984,94(2):359-367.
APA	TAKAKURA, T.,OHKI, K.,SAKURAI, T.,WANG, JL.,宣家余.,...&ZHAO, RY.(1984).Hard X-ray imaging of a solar gradual hard X-ray burst on April 1, 1981.SOLAR PHYSICS,94(2),359-367.
MLA	TAKAKURA, T,et al."Hard X-ray imaging of a solar gradual hard X-ray burst on April 1, 1981".SOLAR PHYSICS 94.2(1984):359-367.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Hard X-ray imaging o（743KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览请求全文