Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...252...75p&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 252, no. 1, Dec. 1991, p. 75-93. Research supported by Observatoire de Geneve
Astronomy and Astrophysics
Astrophysics
166
Barred Galaxies, Galactic Structure, Many Body Problem, Galactic Rotation, Lagrangian Equilibrium Points, Orbital Elements, Orbital Resonances (Celestial Mechanics)
Scientific paper
A detailed study of a 3D stable self-gravitating N-body barred galaxy is presented. In order to obtain insight into the dynamics occurring in bars, the models are examined at four levels: (1) global shape and kinematics, (2) potential and resonances, (3) periodic orbits and their stability, and (4) phase space occupation by the particles. Radial and vertical asymmetries greatly influence the evolution of the orbital structure and the model's shape. Vertical resonances in the bar can act as an efficient vertical heating mechanism. Box-peanut shapes are created by the vertical ILR (2/1) resonance. The potential and particle distributions are characterized several a priori improbable features. The bar shape is sustained by the direct B orbit family which has a small vertical instability strip leading to bifurcations onto the so-called banana and antibanana orbit families.
Friedli Daniel
Pfenniger Daniel
No associations
LandOfFree
Structure and dynamics of 3D N-body barred galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Structure and dynamics of 3D N-body barred galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Structure and dynamics of 3D N-body barred galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1535994