Showing astro-ph.GAShow all
3 papers · 1 filter
astro-ph.GA2026★ 2 cited
Constraints on a fifth force from the stellar orbits around the central supermassive black hole of the Milky Way
Predrag JovanoviÄ, DuÅ¡ko Borka, Vesna Borka JovanoviÄ
Here we investigate a possible presence of a fifth force at the Galactic Center (GC), and its potential influence on the stellar orbits around the central supermassive black hole o…
astro-ph.GA2024
The comparison of an optical and X-ray counterpart of subparsec supermassive binary black holes
P. JovanoviÄ, S. SimiÄ, V. Borka JovanoviÄ +2
In this paper, we study and compare the optical and X-ray counterparts of subparsec supermassive black hole binaries (SMBHBs). With that aim, we simulated the profiles of optical s…
astro-ph.GA2024
Improvement of graviton mass constraints using GRAVITY's detection of Schwarzschild precession in the orbit of S2 star around the Galactic Center
Predrag JovanoviÄ, Vesna Borka JovanoviÄ, DuÅ¡ko Borka +1
Here we study possible improvements of the existing constraints on the upper bound of graviton mass by the analysis of the stellar orbits around the SMBH at the GC in the framework…