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Dynamics of Thick Spirals

Published online by Cambridge University Press:  25 May 2016

P.A. Patsis  and
P. Grosbøl
P.A. Patsis
Affiliation:
ESO, Karl Schwarzschild Str. 2, D-85748, Garching, Germany
P. Grosbøl
Affiliation:
ESO, Karl Schwarzschild Str. 2, D-85748, Garching, Germany

Extract

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Most studies of spiral structure in galaxies use 2D models, since the motion of the stars is supposed to be confined very close to the plane of symmetry. However, galactic disks have a finite thickness and the vertical variation of spiral perturbations should be considered. The effect of 3D orbits in the dynamics of normal spiral galaxies is examined in this paper. We present the basic orbital behavior of the families of periodic orbits, which support a thick spiral pattern.

Type
Chapter 6: How are we to Understand the Large Scale Structure of the ISM?
Information
Symposium - International Astronomical Union , Volume 169: Unsolved Problems of the Milky Way , 1996 , pp. 507 - 508
Copyright
Copyright © Kluwer 1996 

References

Barnaby, D., Thronson, H.A. Jr, 1994, A J 107, 1717 Google Scholar
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Patsis, P.A., Grosbøl, P., 1995 - A&A submitted Google Scholar
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