HIGH TEMPORAL AND SPATIAL-RESOLUTION OBSERVATIONS OF A SOLAR-FLARE ON JUNE 7, 1991

被引：2
|
作者：
CAUZZI, G
FALCHI, A
FALCIANI, R
SMALDONE, LA
机构：
[1] OSSERV ASTROFIS ARCETRI,I-50125 FLORENCE,ITALY
[2] UNIV NAPLES,DIPARTIMENTO SCI FIS,I-80125 NAPLES,ITALY
来源：
ADVANCES IN SPACE RESEARCH | 1993年 / 13卷 / 09期
关键词：
D O I：
10.1016/0273-1177(93)90497-Y
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
We present some preliminary results on a small flare observed at the NSO-Sacramento Peak with very good spatial resolution (.6''-.7''). The flare occurred on June, 7 1991 at approximately 13:43 UT in the NOAA region 6659 and has been observed by the COMPTON BATSE experiment in the 25-50 KeV range. A very complex velocity pattern is found for chromospheric and metallic lines: a small region (5'' wide) presents a strong blue-shifts in all these lines, lasting through the flare, while, only in the Ca II-K and H(delta) lines, we find a zone (again approximately 5'' wide) of strong red asymmetries contemporary to the hard X-rays spikes. These observations show the importance of having high spatial and temporal resolution measurements in the study of flares.
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页码：311 / 315
页数：5
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