TEMPORAL EVOLUTION OF THE CHROMOSPHERIC ELECTRON-DENSITY IN THE FLARE OF JANUARY 5, 1992

被引：6

作者：

ROLLI, E

MAGUN, A

机构：

[1] Institute of Applied Physics, University of Berne, Berne

来源：

SOLAR PHYSICS | 1995年 / 160卷 / 01期

关键词：

D O I：

10.1007/BF00679091

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The analysis of the dynamic evolution of the chromospheric electron density during solar fares is fundamental for the testing of solar fare models. For this purpose we developed a digital imaging spectrograph for the observation of higher Balmer lines below 400 nm with a time resolution of 1 s and an algorithm for the determination of the electron density from the observed line profiles. On January 5, 1992 a M1/1N flare was observed in H alpha, H epsilon and Ca II H and the temporal evolution of the electron density was determined. The chromospheric electron density rises several times from less than 3 x 10(19) to 1 x 10(20) m(-3) during the hard X-ray peaks.

引用

页码：29 / 40

页数：12

共 20 条

[1]

DONATIFALCHI A, 1985, ASTRON ASTROPHYS, V152, P165

[2] THE 1992 JANUARY 5 FLARE AT 13.3-UT - OBSERVATIONS FROM YOHKOH [J].