Speaker
Description
Understanding of the dynamics of stars around the black hole is still incomplete. The Hubble Telescope discovered an evidence of the orbits of stars in the galactic centre that do not follow the Kepler’s laws. In this work, we study the classical effects on the periastron shift. We select the Hernquist potential function for the galactic bulge to examine the rate of change of periastron angular position. We propose a computational approach based on the principle of classical mechanics to study that shift. As a result, we find that the initial speed of the star affects the orbit shape. For a selected initial speed, we get a precession rate of approximately 0.69, in arbitrary units. We expect that our numerical method is able to apply to other models of galaxies.
