74 citations · 413 across the 18 of their papers we have counts for
18 papers
Constraining theories of gravity by fundamental plane of elliptical galaxies
Salvatore Capozziello, Vesna Borka Jovanović, Duško Borka +1
We show that fundamental plane of elliptical galaxies can be used to obtain observational constraints on metric theories of gravity. Being it connected to global properties of elli…
Constraining Non-local Gravity by S2 star orbits
K. F. Dialektopoulos, D. Borka, S. Capozziello +2
Non-local theories of gravity have recently gained a lot of interest because they can suitably represent the behavior of gravitational interaction in the ultraviolet regime. Furthe…
Addressing the missing matter problem in galaxies through a new fundamental gravitational radius
S. Capozziello, P. Jovanović, V. Borka Jovanović +1
We demonstrate that the existence of a Noether symmetry in theories of gravity gives rise to a further gravitational radius, besides the standard Schwarzschild one, determin…
Recovering the fundamental plane of galaxies by gravity
V. Borka Jovanović, S. Capozziello, P. Jovanović +1
The fundamental plane (FP) of galaxies can be recovered in the framework of gravity avoiding the issues related to dark matter to fit the observations. In particular, the po…
SNR radio spectral index distribution and its correlation with polarization: a case study of Lupus Loop
V. Borka Jovanović, P. Jovanović, D. Borka
We use radio-continuum all-sky surveys at 1420 and 408 MHz with the aim to investigate properties of the Galactic radio source Lupus Loop. The survey data at 1435 MHz, with the lin…
Probing hybrid modified gravity by stellar motion around Galactic Centre
D. Borka, S. Capozziello, P. Jovanović +1
We consider possible signatures for the so called {\it hybrid gravity} within the Galactic Central Parsec. This modified theory of gravity consists of a superposition of the metric…
Constraining Extended Gravity Models by S2 star orbits around the Galactic Centre
S. Capozziello, D. Borka, P. Jovanović +1
We investigate the possibility to explain theoretically the observed deviations of S2 star orbit around the Galactic Centre using gravitational potentials derived from modified gra…
Masses of constituent quarks confined in open bottom hadrons
V. Borka Jovanović, D. Borka, P. Jovanović +2
We apply color-spin and flavor-spin quark-quark interactions to the meson and baryon constituent quarks, and calculate constituent quark masses, as well as the coupling constants o…
Composite profile of the Fe K spectral line emitted from a binary system of supermassive black holes
P. Jovanović, V. Borka Jovanović, D. Borka +1
We used a model of a relativistic accretion disk around a supermassive black hole (SMBH), based on ray-tracing method in the Kerr metric, to study the variations of the composite F…
Constraints on gravity from precession of orbits of S2-like stars
D. Borka, P. Jovanović, V. Borka Jovanović +1
We study some possible observational signatures of gravity at Galactic scales and how these signatures could be used for constraining this type of gravity. For that pu…
Mass formulas for single-charm tetraquarks with Fermi-Breit hyperfine interaction
V. Borka Jovanović, D. Borka
In this paper we present the main results of our investigation of the single-charm scalar tetraquarks and their SU(3) representations: $\bar{15}_S…
Spectra of HB 21 supernova remnant: Evidence of spectra flattening at the low frequencies
D. Borka, V. Borka Jovanović, D. Urošević
We use observations of the continuum radio emission at 1420, 820, 408, 34.5 and 22 MHz to estimate the mean brightness temperatures of the HB 21 supernova remnant (SNR) at five fre…
The brightness temperatures of the main Galactic radio-loops at 22 MHz
D. Urošević, V. Borka Jovanović
The average brightness temperatures and surface brightnesses at 22 MHz are derived for the four main Galactic radio-continuum loops (Loops I, II, III and IV, hereafter radio-loops)…
Temperature, brightness and spectral index of the Cygnus radio loop
V. Borka Jovanović, D. Urošević
The estimated brightness of the Cygnus loop supernova remnant (SNR) at 2720, 1420, 820, 408 and 34.5 MHz are presented. The observations of the continuum radio emission are used to…
High-energy plasmon spectroscopy of freestanding multilayer graphene
V. Borka Jovanović, I. Radović, D. Borka +1
We present several applications of the layered electron gas model to electron energy loss spectroscopy of free-standing films consisting of graphene layers in a scanning transm…
Constituent quark masses obtained from hadron masses with contributions of Fermi-Breit and Glozman-Riska hyperfine interactions
V. Borka Jovanović, S. R. Ignjatović, D. Borka +1
We use the color-spin and flavor-spin interaction Hamiltonians with SU(3) flavor symmetry breaking to obtain meson and baryon mass formulas. Adjusting these masses with experimenta…
The Monoceros radio loop: temperature, brightness, spectral index and distance
V. Borka Jovanović, D. Urošević
In this paper we estimated the temperatures and brightnesses of the Monoceros radio loop at 1420, 820 and 408 MHz. Linear spectrum is estimated for mean temperatures versus frequen…
Masses and Mixing of Tetraquarks Using Glozman-Riska Hyperfine Interaction
Vesna Borka Jovanović
In this paper we perform a detailed study of the masses and mixing of the single charmed scalar tetraquarks: . We also give a systematic analysis of these tetr…