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Cylindrically symmetric magnetized inhomogeneous string cosmological models of perfect fluid distribution with variable magnetic permeability

Ravi Prakash Singh ; Department of Physics, St., Andrew's College, Gorakhpur - 273 001, India
Lallan Yadav ; Department of Physics, D. D. U. Gorakhpur University, Gorakhpur-273 009, India


Puni tekst: engleski pdf 162 Kb

str. 305-322

preuzimanja: 77

citiraj


Sažetak

A new class of cylindrically-symmetric magnetized inhomogeneous perfect-fluid string cosmological models with variable magnetic permeability is investigated. We assume that F12 is the only non-vanishing component of the electromagnetic field tensor Fij . The Maxwell’s equations show that F12 is the function of x alone, whereas the magnetic permeability ¯µ may be the function of both x and t. To get the deterministic solution, it has been assumed that the metric coefficients are separable in the form as A = f(x)ℓ(t), B = g(x)k(t), C = g(x)ν(t). Also, the Einstein field equations have been solved with string source in which magnetic field is absent. Some physical and geometric aspects of the models in the presence and absence of magnetic field are discussed.

Ključne riječi

cosmic string; electromagnetic field; inhomogeneous universe; variable magnetic permeability

Hrčak ID:

304618

URI

https://hrcak.srce.hr/304618

Datum izdavanja:

1.11.2010.

Podaci na drugim jezicima: hrvatski

Posjeta: 389 *