Charged anisotropic models for quark stars

Sunzu, Jefta M.; Maharaj, S. D.; Ray, Subharthi

doi:10.1007/s10509-014-1918-7

Cited by 125 publications

(66 citation statements)

References 56 publications

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“…Varela et al [19] established a general approach indicating the role played by an equation of state in the process of dealing with anisotropic matter. Linear relationships involving radial pressure and the energy density exist in anisotropic stellar models of Mafa Takisa et al [20], Sunzu et al [21,22] and Kileba Matondo and Maharaj [23]. Recently, a new approach with anisotropic pressure has been investigated with the Finch and Skea geometry by Maharaj et al [24] and Kileba Matondo et al [25].…”

Section: Introductionmentioning

confidence: 99%

Relativistic stars with conformal symmetry

2018

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We study exact models for anisotropic gravitating stars with conformal symmetry. The gravitational potentials are related explicitly by the conformal vector. We use this relationship between the metric potentials to find new classes of exact solutions to the field equations. We identify a particular model to study the physical features and demonstrate that the model is well behaved. In particular the criteria for stability are satisfied. We regain masses, radii and surface redshifts for the compact objects PSR J1614-2230 and SAX J1808.4-3658.

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Section: Introductionmentioning

confidence: 99%

Relativistic stars with conformal symmetry

2018

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“…In recent times there has been made a considerable effort in modelling observed astrophysical objects in the presence of anisotropy. Some recent research papers addressing this physical feature include the work of Sharma and Ratanpal [4], Ngubelanga et al [5,6], Sunzu et al [7,8], Murad and Fatema [9,10] and Murad [11], and the references therein. The physical analyses contained in these treatments confirm the importance of including nonzero anisotropy in modelling astrophysical objects.…”

Section: Introductionmentioning

confidence: 99%

Anisotropic fluid spheres of embedding class one using Karmarkar condition

2017

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We obtain a new anisotropic solution for spherically symmetric spacetimes by analyzing the Karmarkar embedding condition. For this purpose we construct a suitable form of one of the gravitational potentials to obtain a closed form solution. This form of the remaining gravitational potential allows us to solve the embedding equation and integrate the field equations. The resulting new anisotropic solution is well behaved, which can be utilized to construct realistic static fluid spheres. Also we estimated the masses and radii of fluid spheres for LMC X-4, EXO 1785-248, PSR J1903+327 and

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“…We impose a quark equation of state on the model. The physical features of quark stars have been recently investigated by Malaver [8], Mafa Takisa et al [9], Sunzu et al [10] and Paul et al [11]. The investigations of Sharma et al [12] show that the redshift, luminosity and maximum mass of a compact body are affected by the electric field and anisotropy.…”

Section: Introductionmentioning

confidence: 99%

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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Charged anisotropic models for quark stars

Cited by 125 publications

References 56 publications

Relativistic stars with conformal symmetry

Relativistic stars with conformal symmetry

Anisotropic fluid spheres of embedding class one using Karmarkar condition

New charged anisotropic compact models

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