Six Decades of Spiral Density Wave Theory

2016 ◽  
Vol 54 (1) ◽  
pp. 667-724 ◽  
Author(s):  
Frank H. Shu
Keyword(s):  
Density Wave ◽  
Wave Theory ◽  
Spiral Density Wave ◽  
Density Wave Theory

scholarly journals Topological defects in crystals: A density-wave theory

1988 ◽  
Vol 10 (1-2) ◽  
pp. 45-51 ◽  
Author(s):  
M Raj Lakshmi ◽  
H R Krishna-Murthy ◽  
T V Ramakrishnan
Keyword(s):  
Density Wave ◽  
Topological Defects ◽  
Wave Theory ◽  
Defects In Crystals ◽  
Density Wave Theory

scholarly journals Fitting the Lin–Shu-type density-wave theory for our own Galaxy★

2013 ◽  
Vol 433 (3) ◽  
pp. 2511-2516 ◽  
Author(s):  
Evgeny Griv ◽  
Chow-Choong Ngeow ◽  
Ing-Guey Jiang
Keyword(s):  
Density Wave ◽  
Wave Theory ◽  
Density Wave Theory

scholarly journals Lifetime of density waves and classification of spirals

1979 ◽  
Vol 84 ◽  
pp. 155-156
Author(s):  
J. V. Feitzinger ◽  
Th. Schmidt-Kaler
Keyword(s):  
Density Wave ◽  
Wave Theory ◽  
Density Waves ◽  
Spiral Arms ◽  
Density Wave Theory

Checking the density-wave theory against observations of our own Galaxy has proven very difficult, as witnessed also at this Symposium. Less ambiguous results, however, are obtained for other galaxies. These results involve a) calculating convincing models for a sample of 25 fairly well observed spirals (Roberts et al. 1975) and b) locating the compression zones on the inner edges of the spiral arms.

scholarly journals On the use of the WKBJ density wave theory at the Inner Lindblad Resonance region of our galaxy

1979 ◽  
Vol 84 ◽  
pp. 191-192
Author(s):  
E. Athanassoula
Keyword(s):  
Density Wave ◽  
Wave Theory ◽  
Resonance Region ◽  
Density Wave Theory ◽  
Lindblad Resonance ◽  
Inner Lindblad Resonance

I have tested the reliability of certain approximations involved in the asymptotic WKBJ density wave description of the inner Lindblad resonance (=ILR) of our galaxy.

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