3,803 research outputs found
Dynamics of an Anisotropic Universe in Theory
Dynamics of an anisotropic universe is studied in gravity using a
rescaled functional . Three models have been constructed assuming a
power law expansion of the universe. Physical features of the models are
discussed. The model parameters are constrained from a dimensional analysis. It
is found from the work that, the model in the modified gravity can
favour quintessence and phantom phase.Comment: 16 pages, 4 figure
Axially magnetized Dark Energy cosmological model
We investigate the behaviour of the skewness parameters for an anisotropic
universe in the framework of General Relativity. Non interacting dark energy is
considered in presence of electromagnetic field. A time varying deceleration
parameter simulated by a hybrid scale factor is considered. The dynamics of the
universe is investigated in presence and absence of magnetic field. The
equation of state parameter of dark energy evolves within the range predicted
by the observations. Magnetic field is observed to have a substantial effect on
the cosmic dynamics and the skewness parameters. The models discussed here end
in a big rip and become isotropic at finite time.Comment: 9 pages, 13 figures, Version accepted for publication in Mod. Phys.
Lett.
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