Coronal Hole Oscillations as inferred from SDO/AIA data

被引：2

作者：

Hegde, M. ^{[1
,2
]}

Hiremath, K. M. ^{[1
]}

Vijayakumar, Doddamani H. ^{[2
]}

机构：

[1] Indian Inst Astrophys, Bangalore 560034, Karnataka, India

[2] Bangalore Univ, Dept Phys, Bangalore 560056, Karnataka, India

来源：

ADVANCES IN SPACE RESEARCH | 2014年 / 54卷 / 02期

关键词：

SDO/AIA data; Coronal hole; Flux tube; Oscillations; LONGITUDINAL INTENSITY OSCILLATIONS; BRIGHT POINTS; SOLAR-WIND; TRANSVERSE OSCILLATIONS; SUNSPOT OSCILLATIONS; INITIAL OBSERVATIONS; PERIOD OSCILLATIONS; MEASURED PARAMETERS; LOOP OSCILLATIONS; WAVE-PROPAGATION;

D O I：

10.1016/j.asr.2014.04.001

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

With high temporal resolution (12 s) of about two hours duration, data of a coronal hole structure in 171 angstrom, 193 angstrom and 211 angstrom taken from SDO/AIA images is considered for examination of oscillations. After estimating the total DN counts of a whole coronal hole structure in three wavelength bands, the resulting time series are subjected to FFT and wavelet analysis. Significant periods in all the three wavelength bands are detected that are mainly concentrated around 500 s as a fundamental mode and its odd (167, 100, 71, 56, 46, 39, 33, 29, 26, 24 s) harmonics. Computed phases in all the three wavelengths band are estimated to be constant. (C) 2014 COSPAR. Published by Elsevier Ltd. All rights reserved.

引用

页码：272 / 280

页数：9

共 50 条

[31] EVOLUTION OF CORONAL HOLE BOUNDARIES OBSERVED BY SDO
Yang, S. H.
Zhang, J.
Li, T.
UNDERSTANDING SOLAR ACTIVITY: ADVANCES AND CHALLENGES, 2012, 55 : 29 - 34
[32] GROWING TRANSVERSE OSCILLATIONS OF A MULTISTRANDED LOOP OBSERVED BY SDO/AIA
Wang, Tongjiang
Ofman, Leon
Davila, Joseph M.
Su, Yang
ASTROPHYSICAL JOURNAL LETTERS, 2012, 751 (02)
[33] Damping profile of standing kink oscillations observed by SDO/AIA
1600, EDP Sciences (585):
[34] Damping profile of standing kink oscillations observed by SDO/AIA
Pascoe, D. J.
Goddard, C. R.
Nistico, G.
Anfinogentov, S.
Nakariakov, V. M.
ASTRONOMY & ASTROPHYSICS, 2016, 585
[35] Phase speed and frequency-dependent damping of longitudinal intensity oscillations in coronal loop structures observed with AIA/SDO
A. Abedini
Astrophysics and Space Science, 2016, 361
[36] CORONAL ALFVEN SPEED DETERMINATION: CONSISTENCY BETWEEN SEISMOLOGY USING AIA/SDO TRANSVERSE LOOP OSCILLATIONS AND MAGNETIC EXTRAPOLATION
Verwichte, E.
Van Doorsselaere, T.
Foullon, C.
White, R. S.
ASTROPHYSICAL JOURNAL, 2013, 767 (01):
[37] Simulation of the observed coronal kink instability and its implications for the SDO/AIA
Srivastava, A. K.
Botha, G. J. J.
Arber, T. D.
Kayshap, P.
ADVANCES IN SPACE RESEARCH, 2013, 52 (01) : 15 - 21
[38] DUAL TRIGGER OF TRANSVERSE OSCILLATIONS IN A PROMINENCE BY EUV FAST AND SLOW CORONAL WAVES: SDO/AIA AND STEREO/EUVI OBSERVATIONS
Gosain, S.
Foullon, C.
ASTROPHYSICAL JOURNAL, 2012, 761 (02):
[39] Phase speed and frequency-dependent damping of longitudinal intensity oscillations in coronal loop structures observed with AIA/SDO
Abedini, A.
ASTROPHYSICS AND SPACE SCIENCE, 2016, 361 (04)
[40] Impulsive Coronal Heating from Large-scale Magnetic Rearrangements: From IRIS to SDO/AIA
Reale, Fabio
Testa, Paola
Petralia, Antonino
Graham, David R.
ASTROPHYSICAL JOURNAL, 2019, 882 (01):

← 1 2 3 4 5 →