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
收藏
页码：L77 / L81
页数：5
相关论文
共 38 条
[1]  
BEL N, 1977, ASTRON ASTROPHYS, V55, P239
[2]   On the relation of G-band bright points to the photospheric magnetic field [J].
Berger, TE ;
Title, AM .
ASTROPHYSICAL JOURNAL, 2001, 553 (01) :449-469
[3]   Observational aspects of sunspot oscillations [J].
Bogdan, TJ ;
Judge, PG .
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2006, 364 (1839) :313-331
[4]   Waves in the magnetized solar atmosphere.: II.: Waves from localized sources in magnetic flux concentrations [J].
Bogdan, TJ ;
Hansteen, MCV ;
McMurry, A ;
Rosenthal, CS ;
Johnson, M ;
Petty-Powell, S ;
Zita, EJ ;
Stein, RF ;
McIntosh, SW ;
Nordlund, Å .
ASTROPHYSICAL JOURNAL, 2003, 599 (01) :626-660
[5]  
Bogdan TJ, 2002, ASTRON NACHR, V323, P196, DOI 10.1002/1521-3994(200208)323:3/4<196::AID-ASNA196>3.0.CO
[6]  
2-E
[7]   VERTICAL PHASE VARIATION AND MECHANICAL FLUX IN SOLAR 5-MINUTE OSCILLATION [J].
CANFIELD, RC ;
MUSMAN, S .
ASTROPHYSICAL JOURNAL, 1973, 184 (03) :L131-L136
[8]   The detection of 3 & 5 min period oscillations in coronal loops [J].
De Moortel, I ;
Ireland, J ;
Hood, AW ;
Walsh, RW .
ASTRONOMY & ASTROPHYSICS, 2002, 387 (01) :L13-L16
[9]   How to channel photospheric oscillations into the corona [J].
De Pontieu, B ;
Erdélyi, R ;
De Moortel, I .
ASTROPHYSICAL JOURNAL, 2005, 624 (01) :L61-L64
[10]   Solar chromospheric spicules from the leakage of photospheric oscillations and flows [J].
De Pontieu, B ;
Erdélyi, R ;
James, SP .
NATURE, 2004, 430 (6999) :536-539
1234