Observing the modification of the acoustic cutoff frequency by field inclination angle

被引：68

作者：

McIntosh, Scott W.

Jefferies, Stuart M.

机构：

[1] SW Res Inst, Dept Space Studies, Boulder, CO 80302 USA

[2] Univ Hawaii, Inst Astron, Kula, HI 96790 USA

来源：

ASTROPHYSICAL JOURNAL | 2006年 / 647卷 / 01期

基金：

美国国家科学基金会;

关键词：

Sun : atmospheric motions; Sun : chromosphere; Sun : magnetic fields;

D O I：

10.1086/507425

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We use observations of a sunspot from the Transition Region and Coronal Explorer ( TRACE) spacecraft to demonstrate observationally the modification of the acoustic cutoff frequency in the lower solar chromosphere by the changing the inclination of the magnetic field as first predicted theoretically by Bel & Leroy.

引用

页码：L77 / L81

页数：5

共 38 条

[31] CHROMOSPHERIC AND CORONAL ALFVENIC OSCILLATIONS IN NON-VERTICAL MAGNETIC-FIELDS [J].