Stationary rotating string world models with a magnetic field

Patel, L. K.; Maharaj, S. D.

doi:10.1007/bf02847164

Cited by 32 publications

(30 citation statements)

References 7 publications

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“…The string cosmological model with magnetic field are also investigated by Chakrabortry [1991], Tikekar andPatel [1992,1994]. Patel and Maharaj [1996] obtained Gödel type stationary rotating world model with magnetic field. Yavuz and Tarhan (1996), Baysal et al (2001) have investigated Bianchi Type I string cosmological models that are exact solutions of Einstein's field equation, the curvature source is a cloud of strings which are one dimensional object.…”

Section: Introductionmentioning

confidence: 95%

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Bianchi Type I Magnetized String Cosmological Model in General Relativity

Bali

Anjali

2006

Astrophys Space Sci

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Bianchi Type I magnetized string cosmological model following the techniques used by Letelier and Stachel, is investigated. To get a determinate model, we assume a condition ∈ =λ (geometric string) where ∈ is the rest energy density, λ the string tension density and expansion (θ) is proportional to eigen value σ 1 1 of shear tensor (σ i j ), which leads to A = (BC) n where A, B, C are metric potentials and and n are constants. The behaviour of the model in presence and absence of magnetic field is discussed. The physical and geometrical aspects of the model are also discussed.

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Section: Introductionmentioning

confidence: 95%

“…Vilenkin [1981] has investigated the gravitational effect of such strings. Letelier [1979Letelier [ ,1983 and Stachel [1980] have developed the relativistic treatment of the strings. Magnetic field is present in galactic and intergalactic spaces and plays a significant role at the cosmological scale.…”

Section: Introductionmentioning

confidence: 99%

Bianchi Type I Magnetized String Cosmological Model in General Relativity

Bali

Anjali

2006

Astrophys Space Sci

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“…The string cosmological models with a magnetic field are also discussed by Chakraborty [24], Tikekar and Patel [25,26]. Patel and Maharaj [27] investigated stationary rotating world model with magnetic field. Ram and Singh [28] obtained some new exact solution of string cosmology with and without a source free magnetic field for Bianchi type I space-time in the different basic form considered by Carminati and McIntosh [29].…”

Section: Introductionmentioning

confidence: 99%

Magnetized string cosmological model in cylindrically symmetric inhomogeneous universe with time dependent cosmological-term lambda

Pradhan

Jotania²,

Singh³

2008

Braz. J. Phys.

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Cylindrically symmetric inhomogeneous magnetized string cosmological model is investigated with cosmological term Λ varying with time. To get the deterministic solution, it has been assumed that the expansion (θ) in the model is proportional to the eigen value σ 1 1 of the shear tensor σ i j . The value of cosmological constant for the model is found to be small and positive which is supported by the results from recent supernovae Ia observations. The physical and geometric properties of the model are also discussed in presence and absence of magnetic field.

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“…Bali et al (2001Bali et al ( , 2003Bali et al ( , 2005Bali et al ( , 2006Bali et al ( , 2007 have obtained Bianchi type-I, -III, -V and type-IX string cosmological models in general relativity. The string cosmological models with a magnetic field are discussed by Chakraborty (1991), Patel (1992, 1994), Patel and Maharaj (1996). Ram and Singh (1995) obtained some new exact solution of string cosmology with and without a source free magnetic field for Bianchi type I space-time in the different basic form considered by Carminati and McIntosh (1980).…”

Section: Introductionmentioning

confidence: 99%