Spiral Structure of Galaxies in Gauge Gravitation Theory

Spiral Structure of Galaxies in Gauge Gravitation Theory

The motion of stars in galactic disks is considered in the epicyclic approximation in a potential derived from gauge gravitation theory. It is assumed that the instability of circular orbits of stars with respect to small perturbations in such a potential can lead to the formation of spiral arms. We...

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Veröffentlicht in:Moscow University physics bulletin 2020-03, Vol.75 (2), p.109-115
Hauptverfasser: Kubarko, E. P., Pronin, P. I.
Format: Artikel
Sprache:eng
Schlagworte:
Circular orbits
Galactic structure
Galaxies
Gravitation
Gravitation theory
Mathematical and Computational Physics
Orbital stability
Physics
Physics and Astronomy
Stellar orbits
Theoretical
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Zusammenfassung:The motion of stars in galactic disks is considered in the epicyclic approximation in a potential derived from gauge gravitation theory. It is assumed that the instability of circular orbits of stars with respect to small perturbations in such a potential can lead to the formation of spiral arms. We find the values of the unknown coefficients from the lagrangian of gauge gravitation theory such that they allow such an instability to occur.
ISSN:0027-1349
1934-8460
DOI:10.3103/S002713492002006X