Accelerating universe with variable EoS parameter of dark energy in Brans–Dicke theory of gravitation
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Astrophysics and Astronomy"
DOI: 10.1007/s12036-019-9589-y
Abstract: We have investigated the spatially homogeneous and isotropic Friedmann–Robertson–Walker (FRW) universe filled with barotropic fluid and dark energy in the framework of the Brans–Dicke theory of gravitation. Here we have discussed three models: (i) law… read more here.
Keywords: dicke theory; brans dicke; dark energy; theory gravitation ... See more keywords
Scalar stochastic gravitational-wave background in Brans-Dicke theory of gravity
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.044057
Abstract: We study the scalar stochastic gravitational-wave background (SGWB) from astrophysical sources, including compact binary mergers and stellar collapses, in the Bras-Dicke theory of gravity. By contrast to tensor waves, we found the scalar SGWB to… read more here.
Keywords: gravitational wave; wave background; dicke theory; stochastic gravitational ... See more keywords
Regular Bouncing Solutions, Energy Conditions, and the Brans—Dicke Theory
Sign Up to like & getrecommendations! Published in 2019 at "JETP Letters"
DOI: 10.1134/s0021364019200013
Abstract: In general, to avoid a singularity in cosmological models involves the introduction of exotic kind of matter fields, for example, a scalar field with negative energy density. In order to have a bouncing solution in… read more here.
Keywords: energy conditions; dicke theory; bouncing solutions; regular bouncing ... See more keywords
Bouncing scenario in Brans–Dicke theory
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Geometric Methods in Modern Physics"
DOI: 10.1142/s0219887820500565
Abstract: A bouncing scenario is studied in the framework of generalized Brans–Dicke theory. In order to have a dark energy (DE) driven late time cosmic acceleration, we have considered a unified dark fluid ... read more here.
Keywords: brans dicke; dicke theory; bouncing scenario; scenario brans ... See more keywords