On the galactocentric orbits of nearby stars

• Main Authors: Ninković S., Popović N., Živkov V.
• Format: Article
• Language: English
• Published: Astronomical Observatory, Department of Astronomy, Belgrade 1999-01-01
• Series: Serbian Astronomical Journal
• Online Access: http://www.doiserbia.nb.rs/img/doi/1450-698X/1999/1450-698X9959045N.pdf

Using the data from the Gliese-Jahreiss Catalogue and a particular form of the galactic potential the authors construct galactocentric orbits for nearby stars. The potential used in our paper is stationary and axially symmetric with three contributors - bulge, disc and dark corona. In the calculating of the galactocentric phase coordinates the distance of the Sun to the galactic plane is neglected, the asymmetric drift is not, whereas the components of the solar motion are varied; the distance of the Sun to the axis of galactic rotation and the corresponding value of the circular velocity are assumed according to the model used in the paper. The obtained orbits (projection on meridional plane) in a vast majority are box-like, or more precisely trapezium-like. The effect of the assumed solar motion is discussed and comparisons with results obtained by applying different potentials and initial conditions are made.