Evolution of magnetic field structure and particle acceleration in solar flares

被引：7

作者：

Sakao, T

Kosugi, T

Masuda, S

Sato, J

机构：

[1] Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan

[2] Natl Astron Observ, Mitaka, Tokyo 1818588, Japan

[3] Nagoya Univ, Solar Terr Environm Lab, Toyokawa, Aichi 4428507, Japan

[4] Natl Astron Observ, Nobeyama Radio Observ, Minamisa Ku, Nagano 3841305, Japan

来源：

MAGNETIC RECONNECTION PROCESSES IN THE SOLAR ATMOSPHERE | 2000年 / 26卷 / 03期

关键词：

D O I：

10.1016/S0273-1177(99)01103-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present hard X-ray imaging observations of impulsive solar flares with Yohkoh HXT, focusing on the evolution of hard X-ray double footpoint sources seen in the energy range above 30 keV. In 7 out of the 14 events studied, the separation between the double sources increases (at the 30 confidence level) as the flare progresses, with the double sources moving nearly anti-parallel to each other in most cases. Implications of these results to the global magnetic field structure responsible for solar flare energy release / particle acceleration are discussed. (C) 2000 COSPAR. Published by Elsevier Science Ltd.

引用

页码：497 / 500

页数：4

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