Optical tracers of spiral wave resonances in galaxies. II - Hidden three-arm spirals in a sample of 18 galaxies

1992 ◽  
Vol 79 ◽  
pp. 37 ◽  
Author(s):  
Bruce G. Elmegreen ◽  
Debra M. Elmegreen ◽  
Luis Montenegro
Keyword(s):  
Spiral Wave ◽  
Optical Tracers

Optical tracers of spiral wave resonances in galaxies - Applications to NGC 1566

1990 ◽  
Vol 355 ◽  
pp. 52 ◽  
Author(s):  
Bruce G. Elmegreen ◽  
Debra Meloy Elmegreen
Keyword(s):  
Spiral Wave ◽  
Optical Tracers

Spiral Wave Generation in a Vortex Electric Field

2011 ◽  
Vol 28 (10) ◽  
pp. 100505 ◽  
Author(s):  
Xiao-Ping Yuan ◽  
Jiang-Xing Chen ◽  
Ye-Hua Zhao ◽  
Qin Lou ◽  
Lu-Lu Wang ◽  
...  
Keyword(s):  
Electric Field ◽  
Spiral Wave ◽  
Wave Generation

scholarly journals Positive genetic feedback governs cAMP spiral wave formation in Dictyostelium.

1996 ◽  
Vol 93 (13) ◽  
pp. 6382-6386 ◽  
Author(s):  
H. Levine ◽  
I. Aranson ◽  
L. Tsimring ◽  
T. V. Truong
Keyword(s):  
Spiral Wave ◽  
Wave Formation

Autapse-induced target wave, spiral wave in regular network of neurons

2014 ◽  
Vol 57 (10) ◽  
pp. 1918-1926 ◽  
Author(s):  
HuiXin Qin ◽  
Jun Ma ◽  
ChunNi Wang ◽  
RunTong Chu
Keyword(s):  
Spiral Wave ◽  
Regular Network ◽  
Target Wave

DEFECT-LINE DYNAMICS IN OSCILLATORY SPIRAL WAVES

2006 ◽  
Vol 06 (04) ◽  
pp. L379-L386
Author(s):  
STEVEN WU
Keyword(s):  
Critical Point ◽  
Period Doubling ◽  
Spiral Wave ◽  
Chaotic Regime ◽  
Spiral Waves ◽  
Bifurcation Parameter ◽  
Local Dynamics ◽  
Total Length ◽  
Defect Line ◽  
Large Fluctuations

We study defect-line dynamics in a 2-D spiral-wave pair in the Rössler model for its underlying local dynamics in period-N and chaotic regimes with a single bifurcation parameter κ. We find that a spiral wave pair is always stable across the period-doubling cascade and in the chaotic regime. When N ≥ 2 defect lines appear spontaneously and a loop exchange occurs across the defect line. There exists a "critical point" κ c below and above which the time-averaged total length of defect lines L converges to almost constant but different values L1 and L2. When κ > κ c defect lines show large fluctuations due to creation and annihilation processes.

Common mechanism links spiral wave meandering and wave-front–obstacle separation

1997 ◽  
Vol 55 (1) ◽  
pp. 1193-1196 ◽  
Author(s):  
J. M. Starobin ◽  
C. F. Starmer
Keyword(s):  
Wave Front ◽  
Spiral Wave ◽  
Common Mechanism

Size matters: Effects of the size of heterogeneity on the wave re-entry and spiral wave formation in an excitable media

2021 ◽  
Vol 31 (5) ◽  
pp. 053131
Author(s):  
Karthikeyan Rajagopal ◽  
Shaobo He ◽  
Anitha Karthikeyan ◽  
Prakash Duraisamy
Keyword(s):  
Spiral Wave ◽  
Wave Formation ◽  
Excitable Media

scholarly journals Measurement and structure of spiral wave response functions

2017 ◽  
Vol 27 (9) ◽  
pp. 093912 ◽  
Author(s):  
Hans Dierckx ◽  
Henri Verschelde ◽  
Alexander V. Panfilov
Keyword(s):  
Spiral Wave ◽  
Response Functions ◽  
Wave Response
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