S-stars motion around relativistic compact object Sgr A*

Abstract

A review of modern VLTI observations of the orbital motion of closest stars to the relativistic compact object Sgr A* and its ability to test gravitation theories in the conditions of Post-Newtonian approximation. The observed orbital parameters, second order Doppler effect and gravitational redshift, measured for several S-stars, are compared with theoretical PN predictions.

arXiv commentreport at the Diversity of the Local Universe 2019 conference

References in corpus (4)

• SINFONI in the Galactic Center: young stars and IR flares in the central light month
• Detection of a drag force in G2's orbit: Measuring the density of the accretion flow onto Sgr A* at 1000 Schwarzschild radii
• Einstein's Geometrical Versus Feynman's Quantum-Field Approaches to Gravity Physics: Testing by Modern Multimessenger Astronomy
• Constraining Scalar-Tensor gravity models by S2 star orbits around the Galactic Center