Numerical modeling of transient structures in the disks of spiral galaxies

Numerical modeling of transient structures in the disks of spiral galaxies

Nonstationary gas-dynamical processes occuring in the disks of spiral galaxies due to the external gravitational field have been studied using numerical simulations. A series of hydrodynamical discontinuities, including strong shock fronts and contact discontinuities, arises as a result of the nonli...

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Veröffentlicht in:Astronomy reports 2014-02, Vol.58 (2), p.48-62
Hauptverfasser: Lugovskii, A. Yu, Filistov, E. A.
Format: Artikel
Sprache:eng
Schlagworte:
Astronomy
Astrophysics
Computer simulation
Contact
Discontinuity
Disks
Gravitational fields
Mathematical models
Morphology
Observations and Techniques
Physics
Physics and Astronomy
Spiral galaxies
Stars & galaxies
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Beschreibung
Zusammenfassung:Nonstationary gas-dynamical processes occuring in the disks of spiral galaxies due to the external gravitational field have been studied using numerical simulations. A series of hydrodynamical discontinuities, including strong shock fronts and contact discontinuities, arises as a result of the nonlinear, supersonic interaction between emerging spiral formations and the flow of matter in the two-armed global morphology.
ISSN:1063-7729
1562-6881
DOI:10.1134/S1063772914020036