PARTICLE-ACCELERATION IN FLARES

被引：13
|
作者：
BENZ, AO
KOSUGI, T
ASCHWANDEN, MJ
BANKA, SG
CHUPP, EL
ENOME, S
GARCIA, H
HOLMAN, GD
KURT, VG
SAKAO, T
STEPANOV, AV
VOLWERK, M
机构：
[1] NATL ASTRON OBSERV, MITAKA, TOKYO 181, JAPAN
[2] UNIV MARYLAND, DEPT ASTRON, COLLEGE PK, MD 20742 USA
[3] USN, RES LAB, EO HULBURT CTR SPACE RES, WASHINGTON, DC 20375 USA
[4] UNIV NEW HAMPSHIRE, DEPT PHYS, DURHAM, NH 03824 USA
[5] UNIV NEW HAMPSHIRE, CTR SPACE SCI, DURHAM, NH 03824 USA
[6] NOBEYAMA RADIO OBSERV, NAGANO 381413, JAPAN
[7] NOAA, SPACE ENVIRONM LAB, BOULDER, CO 80303 USA
[8] NASA, GODDARD SPACE FLIGHT CTR, ASTRON & SOLAR PHYS LAB, GREENBELT, MD 20771 USA
[9] INST NUCL PHYS, MOSCOW, RUSSIA
[10] NATL ASTRON OBSERV, MITAKA, TOKYO 181, JAPAN
[11] CRIMEAN ASTROPHYS OBSERV, KATZIVELY, UKRAINE
来源：
SOLAR PHYSICS | 1994年 / 153卷 / 1-2期
关键词：
D O I：
10.1007/BF00712491
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Particle acceleration is intrinsic to the primary energy release in the impulsive phase of solar flares, and we cannot understand flares without understanding acceleration. New observations in soft and hard X-rays, gamma-rays and coherent radio emissions are presented, suggesting flare fragmentation in time and space. X-ray and radio measurements exhibit at least five different time scales in flares. In addition, same new observations of delayed acceleration signatures are also presented. The theory of acceleration by parallel electric fields is used to model the spectral shape and evolution of hard X-rays. The possibility of the appearance of double layers is further investigated.
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页码：33 / 53
页数：21
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