Theory of Transverse Oscillations of Solar Coronal Loops

2009 ◽  
Author(s):  
M. S. Ruderman ◽  
Ivan Zhelyazkov
Keyword(s):  
Coronal Loops ◽  
Transverse Oscillations ◽  
Solar Coronal

scholarly journals Transverse oscillations in solar coronal loops induced by propagating Alfvénic pulses

2005 ◽  
Vol 431 (3) ◽  
pp. 1095-1104 ◽  
Author(s):  
L. Del Zanna ◽  
E. Schaekens ◽  
M. Velli
Keyword(s):  
Coronal Loops ◽  
Transverse Oscillations ◽  
Solar Coronal

scholarly journals Dynamics of solar coronal loops

2003 ◽  
Vol 411 (3) ◽  
pp. 605-613 ◽  
Author(s):  
D. A. N. Müller ◽  
V. H. Hansteen ◽  
H. Peter
Keyword(s):  
Coronal Loops ◽  
Solar Coronal

scholarly journals Undamped transverse oscillations of coronal loops as a self-oscillatory process

2016 ◽  
Vol 591 ◽  
pp. L5 ◽  
Author(s):  
V. M. Nakariakov ◽  
S. A. Anfinogentov ◽  
G. Nisticò ◽  
D.-H. Lee
Keyword(s):  
Oscillatory Process ◽  
Coronal Loops ◽  
Transverse Oscillations

MULTI-STRANDED AND MULTI-THERMAL SOLAR CORONAL LOOPS: EVIDENCE FROMHINODEX-RAY TELESCOPE AND EUV IMAGING SPECTROMETER DATA

2010 ◽  
Vol 723 (2) ◽  
pp. 1180-1187 ◽  
Author(s):  
J. T. Schmelz ◽  
S. H. Saar ◽  
K. Nasraoui ◽  
V. L. Kashyap ◽  
M. A. Weber ◽  
...  
Keyword(s):  
Coronal Loops ◽  
Imaging Spectrometer ◽  
Spectrometer Data ◽  
Euv Imaging ◽  
Solar Coronal

Concerning the Dynamics of Energetic Protons in Coronal Magnetic Loops: Dispersion Effects of Alfven Waves

1985 ◽  
Vol 107 ◽  
pp. 559-559
Author(s):  
V. A. Mazur ◽  
A. V. Stepanov
Keyword(s):  
Magnetic Field ◽  
Wave Dispersion ◽  
Alfven Waves ◽  
Alfven Wave ◽  
Wave Number ◽  
Alfvén Waves ◽  
Coronal Loops ◽  
Coronal Magnetic Loops ◽  
The Magnetic Field ◽  
Solar Coronal

It is shown that the existence of plasma density inhomogeneities (ducts) elongated along the magnetic field in coronal loops, and of Alfven wave dispersion, associated with the taking into account of gyrotropy U ≡ ω/ωi ≪ 1 (Leonovich et al., 1983), leads to the possibility of a quasi-longitudinal k⊥ < √U k‖ propagation (wave guiding) of Alfven waves. Here ω is the frequency of Alfven waves, ωi is the proton gyrofrequency, and k is the wave number. It is found that with the parameter ξ = ω2 R/ωi A > 1, where R is the inhomogeneity scale of a loop across the magnetic field, and A is the Alfven wave velocity, refraction of Alfven waves does not lead, as contrasted to Wentzel's inference (1976), to the waves going out of the regime of quasi-longitudinal propagation. As the result, the amplification of Alfven waves in solar coronal loops can be important. A study is made of the cyclotron instability of Alfven waves under solar coronal conditions.

Sign in / Sign up

Export Citation Format

Share Document