Abstract Here we investigate possible applications of observed stellar orbits around Galactic Center for constraining the R n gravity at Galactic scales. For that purpose, we simulated orbits of S2-like stars around the massive black hole at Galactic Center, and study the constraints on the R n gravity which could be obtained by the present and next generations of large telescopes. Our results show that R n gravity affects the simulated orbits in the qualitatively similar way as a bulk distribution of matter (including a stellar cluster and dark matter distributions) in Newton’s gravity. In the cases where the density of extended mass is higher, the maximum allowed value of parameter in R n gravity is noticeably smaller, due to the fact that the both extended mass and gravity cause the retrograde orbital precession.
Constraints on gravity from precession of orbits of S2-like stars: A case of a bulk distribution of mass
Advances in Space Research ; 54 , 6 ; 1108-1112
2014-05-25
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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