Charged anisotropic matter with a linear equation of state

Thirukkanesh, S.; Maharaj, S. D.

doi:10.1088/0264-9381/25/23/235001

Cited by 215 publications

(187 citation statements)

References 41 publications

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“…We can regain the mass functions of Thirukkanesh and Maharaj [21] (l = s = 0) and Mafa Takisa and Maharaj [22] (l = 0) from (20) as particular cases in the presence of charge.…”

Section: The Case B = Amentioning

confidence: 77%

“…The function E is finite at the centre and well behaved in the stellar interior. When l = s = 0 we regain the models of Thirukkanesh and Maharaj [21]. If l = 0 then the exact models of Mafa Takisa and Maharaj [22] are obtained.…”

Section: Physical Modelsmentioning

confidence: 89%

“…These solutions satisfy a barotropic equation of state and contain the Finch and Skea [20] model. Charged anisotropic models with a linear equation of state were found by Thirukkanesh and Maharaj [21]. Mafa Takisa and Maharaj [22] utilised a linear equation of state to generate regular solutions of anisotropic spherically symmetric charged distributions which can be related to observed astronomical objects.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

New charged anisotropic compact models

Matondo

Maharaj

2016

Astrophys Space Sci

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We find new exact solutions to the Einstein-Maxwell field equations which are relevant in the description of highly compact stellar objects. The relativistic star is charged and anisotropic with a quark equation of state. Exact solutions of the field equations are found in terms of elementary functions. It is interesting to note that we regain earlier quark models with uncharged and charged matter distributions. A physical analysis indicates that the matter distributions are well behaved and regular throughout the stellar structure. A range of stellar masses are generated for particular parameter values in the electric field. In particular the observed mass for a binary pulsar is regained.

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“…We can regain the mass functions of Thirukkanesh and Maharaj [21] (l = s = 0) and Mafa Takisa and Maharaj [22] (l = 0) from (20) as particular cases in the presence of charge.…”

Section: The Case B = Amentioning

confidence: 77%

Section: Physical Modelsmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

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New charged anisotropic compact models

Matondo

Maharaj

2016

Astrophys Space Sci

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“…Because there is a coordinate singularity, we first write g(r) ≈ g − (1 − r − /r) −1 and find f (r) from Eq. (14), to get…”

Section: Inner Horizon and Maximal Radius Surfacementioning

confidence: 99%

Black hole in closed spacetime with an anisotropic fluid

Kim¹

2017

Phys. Rev. D

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We study spherically symmetric geometries made of anisotropic perfect fluid based on general relativity. The purpose of the work is to find and classify black hole solutions in closed spacetime. In a general setting, we find that a static and closed space exists only when the radial pressure is negative but its size is smaller than the density. The Einstein equation is eventually casted into a first order autonomous equation on two-dimensional plane of scale-invariant variables, which are equivalent to the Tolman-Oppenheimer-Volkoff (TOV) equation in general relativity. Then, we display various solution curves numerically. An exact solution describing a black hole solution in a closed spacetime was known in Ref. [1], which solution bears a naked singularity and negative energy era. We find that the two deficits can be remedied when ρ + 3p1 > 0 and ρ + p1 + 2p2 < 0, where the second violates the strong energy condition.

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“…Impacts of anisotropy on the stability of a stellar configuration have been studied by Dev and Gleiser (2002, 2004. Sharma and Maharaj (2007) and Thirukkanesh and Maharaj (2008) have obtained analytic solutions of compact anisotropic stars by assuming a linear equation of state(EOS). To solve the Einstein-Maxwell system, Komathiraj and Maharaj (2007) have used a linear equation of state.…”

mentioning

confidence: 99%

Modified Finch and Skea stellar model compatible with observational data

Pandya

Thomas

Sharma³

2014

Astrophys Space Sci

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We present a new class of solutions to the Einstein's field equations corresponding to a static spherically symmetric anisotropic system by generalizing the ansatz of Finch and Skea [Class. Quantum Grav. 6 (1989) Based on physical requirements, regularity conditions and stability, we prescribe bounds on the model parameters. By systematically fixing values of the model parameters within the prescribed bound, we demonstrate that our model is compatible with the observed masses and radii of a wide variety of compact stars like

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Charged anisotropic matter with a linear equation of state

Cited by 215 publications

References 41 publications

New charged anisotropic compact models

New charged anisotropic compact models

Black hole in closed spacetime with an anisotropic fluid

Modified Finch and Skea stellar model compatible with observational data

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