Bianchi type VI0 cosmological model with electromagnetic field and variable deceleration parameter in general theory of relativity.

Autor: Hegazy, E. A., Rahaman, Farook
Zdroj: Indian Journal of Physics; Nov2020, Vol. 94 Issue 11, p1847-1852, 6p
Abstrakt: Bianchi type VI0 cosmological model in the presence of the electromagnetic field in the theory of relativity is studied. For the current flow along z-axis, F 12 is the only nonvanishing component of F ij (the magnetic field). An exact solution of the field equations is given by considering the deceleration parameter as a linear function of t in the form q = - 1 + m - k t where m and k are constants. The entropy S and the thermodynamic functions (enthalpy, Gibbs energy and Helmholtz energy) of the universe are calculated and studied. Also, physical and geometrical properties of our models are studied. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index