Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...108..206s&link_type=abstract
Astronomy and Astrophysics, vol. 108, no. 2, Apr. 1982, p. 206-212.
Astronomy and Astrophysics
Astrophysics
1
Density Wave Model, Galactic Nuclei, Orbit Perturbation, Stellar Motions, Disk Galaxies, Galactic Rotation, Spiral Galaxies, Time Dependence, Trapping
Scientific paper
Characteristics of plane galactic orbits in a model galaxy with an axially symmetric background and a weak time-dependent bar potential are examined in the region between corotation and the center of the galaxy. Trapped orbits in the time-dependent case and their population with nonperiodic orbits in the case of oval distortion imposed on the axially symmetric gravitational background potential are calculated, giving rise to a maximum in the curve Omega-(k/2), where Omega is the mean orbital frequency of the circular motion around the galactic center, and k is the epicyclic frequency. Results are qualitatively similar to those of Contopoulos et al. (1977, 1980), and it is shown that when oval distortion is slowly growing in time, the population around the guiding-center orbits depends strongly on the growth-rate and the chosen function of growth.
Spreckels H.
Thielheim Klaus Oswald
No associations
LandOfFree
Plane galactic orbits in stationary and time-dependent rotating bars 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 Plane galactic orbits in stationary and time-dependent rotating bars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plane galactic orbits in stationary and time-dependent rotating bars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-839999