scholarly journals The pulsating DAV white dwarf BPM 31594 (VY Hor): evidence for non-linear mode coupling by direct resonance

1992 ◽  
Vol 258 (2) ◽  
pp. 415-438 ◽  
Author(s):  
D. O'Donoghue ◽  
B. Warner ◽  
M. Cropper
Keyword(s):  
White Dwarf ◽  
Mode Coupling ◽  
Linear Mode ◽  
Non Linear ◽  
Direct Resonance

scholarly journals Non-Linear Excitation of Warps by Spiral Waves in Galaxies

1996 ◽  
Vol 157 ◽  
pp. 363-365
Author(s):  
F. Masset ◽  
M. Tagger
Keyword(s):  
Angular Momentum ◽  
Mode Coupling ◽  
Spiral Wave ◽  
Spiral Waves ◽  
Stellar Disk ◽  
Barred Galaxies ◽  
Linear Mode ◽  
Non Linear ◽  
Thick Disks ◽  
Lindblad Resonance

AbstractWe present a mechanism to explain the permanent excitation of warps in spiral or barred galaxies. We show that non-linear mode coupling with the spiral wave can be very efficient to drive two warp waves. We derive an expression of the coupling coefficient in the WKB approximation. We show that the coupling is too weak in the stellar disk, except at the Outer Lindblad Resonance where the spiral slows down and is efficiently coupled to warp waves. There, the spiral can almost completely transfer its energy and angular momentum to a ”transmitted“ warp, which we can observe in HI, and a ”reflected“ one, which we can observe as a corrugation. Our mechanism reproduces the observed amplitudes of the warp and of the corrugation.We first present side results concerning the propagation of warps in moderately thick disks.

Evaluation of Non-Linear Mode Coupling During End-Plate Biasing Experiment in PANTA

2015 ◽  
Vol 10 (0) ◽  
pp. 3401043-3401043 ◽  
Author(s):  
Fumiyoshi KIN ◽  
Takuma YAMADA ◽  
Shigeru INAGAKI ◽  
Hiroyuki ARAKAWA ◽  
Yoshihiko NAGASHIMA ◽  
...  
Keyword(s):  
Mode Coupling ◽  
Linear Mode ◽  
End Plate ◽  
Non Linear

scholarly journals Non-linear mode coupling in symmetrically kinked bars

1987 ◽  
Vol 118 (1) ◽  
pp. 23-34 ◽  
Author(s):  
K.A. Legge ◽  
N.H. Fletcher
Keyword(s):  
Mode Coupling ◽  
Linear Mode ◽  
Non Linear

scholarly journals Non-linear mode coupling and the growth of perturbations in ΛCDM

2011 ◽  
Vol 2011 (03) ◽  
pp. 005-005 ◽  
Author(s):  
Kari Enqvist ◽  
Gerasimos Rigopoulos
Keyword(s):  
Mode Coupling ◽  
Linear Mode ◽  
Non Linear

Non-linear mode-mode coupling at a plasma-vacuum transition layer

1975 ◽  
Vol 17 (1) ◽  
pp. 89-95 ◽  
Author(s):  
A R Barakate ◽  
V V Dolgopolov ◽  
N M El-Siragy
Keyword(s):  
Transition Layer ◽  
Mode Coupling ◽  
Linear Mode ◽  
Non Linear
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