Dynamics of the star S0-1 and the nature of the compact dark object at the Galactic center

Abstract

It has been recently shown (Munyaneza, Tsiklauri and Viollier 1998) that the analysis of the orbits of the fast moving stars close to Sgr A${}^{\ast }$ (Eckart and Genzel 1997) provides a valuable tool to probe the gravitational potential near the Galactic center. As an example, we present here the results on a calculation of possible orbits of the star S0-1 in both, the black hole and degenerate neutrino ball scenarios of the central mass, based on the recent measurements of stellar proper motions at the Galactic center by Ghez et al. 1998. Taking into account the error bars of their analysis, it is shown that within a few years time, the orbit of S0-1 may indeed reveal the nature of the supermassive compact dark object at the Galactic center.

11 pages, 10 figures

References in corpus (9)

• High Proper Motion Stars in the Vicinity of Sgr A*: Evidence for a Supermassive Black Hole at the Center of Our Galaxy
• The supermassive black hole of M87 and the kinematics of its associated gaseous disk
• Particle Physics from Stars
• Dynamical Constraints On Alternatives To Massive Black Holes In Galactic Nuclei
• Dark matter concentration in the galactic center
• Sgr A^*: A supermassive black hole or a spatially extended object?
• Stars and Halos of Degenerate Relativistic Heavy-Neutrino and Neutralino Matter
• General-Relativistic Thomas-Fermi model
• Gravitational phase transition of heavy neutrino matter

Cited by in corpus (9)

• The Supermassive Black Hole at the Galactic Center
• Born-Infeld Phantom Gravastars
• Ejection of high-velocity stars from the Galactic Center by an inspiraling Intermediate-Mass Black Hole
• On the Formation of Degenerate Heavy Neutrino Stars
• The motion of stars near the Galactic center: A comparison of the black hole and fermion ball scenarios
• Fast Growth of Supermassive Black Holes in Galaxies
• Degenerate sterile neutrino dark matter in the cores of galaxies
• A Symbiotic Scenario for the Rapid Formation of Supermassive Black Holes
• Probing the two temperature paradigm for advection dominated accretion flow: test for the component thermalization time-scale passed