5 papers
A way to constrain a graviton mass from astronomical observations
Alexander F. Zakharov, Predrag Jovanovic, Dusko Borka +1
Along with a whole range of alternative theories of gravity, variants of the massive theory of gravity, i.e. the theory of gravity, in which the graviton has mass, have been active…
The baryonic Tully-Fisher relation and Fundamental Plane in the light of gravity
V. Borka Jovanović, D. Borka, P. Jovanović
Here we use the samples of spiral and elliptical galaxies, in order to investigate theoretically some of their properties and to test the empirical relations, in the light of modif…
The comparison of an optical and X-ray counterpart of subparsec supermassive binary black holes
P. Jovanović, S. Simić, V. Borka Jovanović +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…
Constraints on graviton mass from Schwarzschild precession in the orbits of S-stars around the Galactic Center
Predrag Jovanović, Vesna Borka Jovanović, Duško Borka +1
In this paper we use a modification of the Newtonian gravitational potential with a non-linear Yukawa-like correction, as it was proposed by C. Will earlier to obtain new bounds on…
Study of spectral index of giant radio galaxy from Leahy's Atlas: DA 240
V. Borka Jovanović, D. Borka, P. Jovanović
Here we investigate the giant radio galaxy DA 240, which is a FR II source. Specifically, we investigate its flux density, as well as the spectral index distribution. For that purp…