22 citations · 83 across the 19 of their papers we have counts for
8 papers · 1 filter
On the Earth's tidal perturbations. II. LARES 2 satellite
V. G. Gurzadyan, I. Ciufolini, H. G. Khachatryan +2
Laser-ranging satellites have proved their efficiency in high precision testing of General Relativity and constraining modified gravity theories proposed to explain the dark sector…
Structure formation in the local Universe and the cosmological constant
V. G. Gurzadyan
The structure formation in the local Universe is considered within the weak-field modification of General Relativity involving the cosmological constant. This approach enables to d…
Cosmic voids and the kinetic analysis. IV. Hubble tension and the cosmological constant
V. G. Gurzadyan, N. N. Fimin, V. M. Chechetkin
The formation of the cosmic structures in the late Universe is considered using Vlasov kinetic approach. The crucial point is the use of the gravitational potential with repulsive…
Smearing of primordial gravitational waves
M. Samsonyan, A. A. Kocharyan, V. G. Gurzadyan
A mechanism for smearing of the primordial gravitational waves during the radiation-dominated phase of the evolution of the Universe is considered. It is shown that the primordial…
Neural Network Analysis of S2-Star Dynamics: Extended mass
N. Galikyan, Sh. Khlghatyan, A. A. Kocharyan +1
Physics-informed neural network (PINN) analysis of the dynamics of S-stars in the vicinity of the supermassive black hole in the Galactic center is performed within General Relativ…
Tidal disruption effects near black holes and Lambda-gravity
A. Stepanian, Sh. Khlghatyan, V. G. Gurzadyan
The tidal disruption of stars in the vicinity of massive black holes is discussed in the context of -gravity. The latter provides an explanation to the Hubble tension as a possi…
Cosmic voids and induced hyperbolicity. III. tracing redshift dependence
M. Samsonyan, A. A. Kocharyan, A. Stepanian +1
The currently released datasets of the observational surveys reveal the redshift dependence of the physical features of cosmic voids. We study the void induced hyperbolicity, that…
Cosmic voids and induced hyperbolicity. II. Sensitivity to void/wall scales
M. Samsonyan, A. A. Kocharyan, A. Stepanian +1
Cosmic voids as typical under-density regions in the large scale Universe are known for their hyperbolic properties as an ability to deviate the photon beams. The under-density the…