89 citations · 417 across the 18 of their papers we have counts for
7 papers · 1 filter
On graviton propagation in curved space-time background
E. V. Arbuzova, A. D. Dolgov, L. A. Panasenko
Equation describing propagation of gravitational waves (GW) over arbitrary curved space-time background is analyzed. New terms, which are absent in the conventional homogeneous and…
Instability of gravitational baryogenesis with fermions
E. V. Arbuzova, A. D. Dolgov
The derivative coupling of baryonic current to the curvature scalar in gravitational baryogenesis scenarios leads to higher order equations for gravitational field. It is shown tha…
Jeans Instability in Classical and Modified Gravity
E. V. Arbuzova, A. D. Dolgov, L. Reverberi
Gravitational instability in classical Jeans theory, General Relativity, and modified gravity is considered. The background density increase leads to a faster growth of perturbatio…
Spherically Symmetric Solutions in F(R) Gravity and Gravitational Repulsion
E. V. Arbuzova, A. D. Dolgov, L. Reverberi
Spherically symmetric solutions in F(R) theories in astronomical systems with rising energy density are studied. The range of parameters is established for which the flat space-tim…
Particle Production in f(R) Gravity during Structure Formation
E. V. Arbuzova, A. D. Dolgov, L. Reverberi
We study particle production in infrared-modified gravitational theories in the contemporary universe. It is shown that in astronomical systems with rising mass density, the curvat…
Curvature Oscillations in Modified Gravity and High Energy Cosmic Rays
E. V. Arbuzova, A. D. Dolgov, L. Reverberi
It is shown that F(R)-modified gravitational theories lead to curvature oscillations in astrophysical systems with rising energy density. The frequency and the amplitude of such os…