Quasi-periodic pulsations and diagnostics of flaring plasma

被引：2

作者：

Stepanov, A. V. ^{[1
]}

Zaitsev, V. V. ^{[2
]}

机构：

[1] Pulkovo Observ, St Petersburg, Russia

[2] Inst Appl Phys, Nizhnii Novgorod, Russia

来源：

GEOMAGNETISM AND AERONOMY | 2014年 / 54卷 / 08期

关键词：

INITIAL-VALUE PROBLEM; CORONAL LOOPS; TRANSVERSE OSCILLATIONS; MICROWAVE-RADIATION; RADIO-EMISSION; SOLAR; WAVES; MECHANISM; EVOLUTION; ORIGIN;

D O I：

10.1134/S0016793214080167

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Two approaches in the interpretation of quasi-periodic pulsations in solar and stellar flares are presented. The first presents flaring loops as resonators for magneto-hydrodynamic (MHD) oscillations. Leaky and non-leaky modes are discussed. The second approach is based on Alfv,n's idea of the flaring loop as an equivalent electric circuit. This approach naturally explains high-quality pulsations. It is shown that coronal seismology provides an efficient diagnostic tool for flare plasma on the Sun, red dwarfs, and in giant flares on neutron stars.

引用

页码：969 / 981

页数：13

共 65 条

[1]

Alfven H., 1981, COSMIC PLASMA, P178

[2]

Alfvn H., 1967, SoPh, V1, P220, DOI [10.1007/BF00150857, DOI 10.1007/BF00150857]

[3]

Ashwanden M., 2005, PHYS SOLAR CORONA IN

[4] Note on the initial value problem for coronal loop Kink waves [J].