Relativistic model for anisotropic compact stars using Karmarkar condition

Prasad, Amit Kumar; Kumar, Jitendra; Maurya, S. K.; Dayanandan, Baiju

doi:10.1007/s10509-019-3553-9

Cited by 38 publications

(20 citation statements)

References 44 publications

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“…Again, putting Equations (38), (46) and (47) in Equations (33), (34) and 35, we get the following physical parameters:…”

Section: Solution To the Einstein Field Equations In F (T T ) Gravitmentioning

confidence: 99%

“…where d is integrating constant. With the help of Equations (31), (39), (43), (46), (47) and 51, we have the two unknown functions of r of the given metric (25) as…”

Section: Solution To the Einstein Field Equations In F (T T ) Gravitmentioning

confidence: 99%

“…Studies on anisotropic stars in different types of modified gravity theories are available in literature [43][44][45][46][47][48]. Saha and Debnath [49] have investigated anisotropic stars in f (T) gravity with modified Chaplygin gas.…”

Section: Introductionmentioning

confidence: 99%

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Study on Anisotropic Strange Stars in f(T,T) Gravity

Salako¹,

Khlopov²,

Ray³

et al. 2020

Preprint

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In this work, we study the existence of strange star in the background of f(T,T) gravity in the Einstein spacetime geometry, where T is the torsion tensor and T is the trace of the energy-momentum tensor. The equations of motion are derived for anisotropic pressure within the spherically symmetric strange star. We explore the physical features like energy conditions, mass-radius relations, modified TOV equations, principal of causality, adiabatic index, redshift and stability analysis of our model. These features are realistic and appealing to further investigation of properties of compact objects in f(T,T) gravity as well as their observational signatures.

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“…Again, putting Equations (38), (46) and (47) in Equations (33), (34) and 35, we get the following physical parameters:…”

Section: Solution To the Einstein Field Equations In F (T T ) Gravitmentioning

confidence: 99%

“…where d is integrating constant. With the help of Equations (31), (39), (43), (46), (47) and 51, we have the two unknown functions of r of the given metric (25) as…”

Section: Solution To the Einstein Field Equations In F (T T ) Gravitmentioning

confidence: 99%

See 1 more Smart Citation

Study on Anisotropic Strange Stars in f(T,T) Gravity

Salako¹,

Khlopov²,

Ray³

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…It is basically a mathematical tool which helps us in obtaining the exact solutions of field equations. In literature [89][90][91][92][93], this condition has been used by numerous researchers for discussing the compact stars models. In the present paper, we shall adopt the Karmarkar condition to develop the analytic solutions representing compact objects in f (R, T ) gravity.…”

Section: Introductionmentioning

confidence: 99%

Realistic stellar anisotropic model satisfying Karmarker condition in f(R, T) gravity

et al. 2020

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The present study explores the f (R, T) modified gravity on the basis of observational data for three different compact stars with matter profile as anisotropic fluid without electric charge. In this respect, we adopt the well-known Karmarker condition and assume a specific and interesting model for g rr metric potential component which is compatible with this condition. This choice further leads to a viable form of metric component g tt by utilizing the Karmarkar condition. We also present the interior geometry in the reference of Schwarzschild interior and Kohler-Chao cosmological like solutions for f (R, T) theory. Moreover, we calculate the spacetime constants by using the masses and radii from the observational data of three different compact stars namely 4U 1538-52, LMC X-4 and PSR J1614-2230. In order to explore the viability and stability of the obtained solutions, some physical parameters and properties are presented graphically for all three different compact object models. It is noticed that the parameters c and λ have some important and considerable role for these solutions. It is concluded that our obtained solutions are physically acceptable, bearing a well-behave nature in f (R, T) modified gravity.

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“…Studies on anisotropic stars in different types of modified gravity theories are available in literature [41,[47][48][49][50][51]. Saha and Debnath [52] have investigated anisotropic stars in f (T) gravity with modified Chaplygin gas.…”

Section: Introductionmentioning

confidence: 99%

Study on Anisotropic Strange Stars in f ( T , T ) Gravity

Salako

Khlopov

Ray³

et al. 2020

Universe

View full text Add to dashboard Cite

In this work, we study the existence of strange stars in the background of f(T,T) gravity in the Einstein spacetime geometry, where T is the torsion tensor and T is the trace of the energy-momentum tensor. The equations of motion are derived for anisotropic pressure within the spherically symmetric strange star. We explore the physical features like energy conditions, mass-radius relations, modified Tolman–Oppenheimer–Volkoff (TOV) equations, principal of causality, adiabatic index, redshift and stability analysis of our model. These features are realistic and appealing to further investigation of properties of compact objects in f(T,T) gravity as well as their observational signatures.

show abstract

Relativistic model for anisotropic compact stars using Karmarkar condition

Cited by 38 publications

References 44 publications

Study on Anisotropic Strange Stars in <em>f</em>(T,<em>T</em>) Gravity

Study on Anisotropic Strange Stars in <em>f</em>(T,<em>T</em>) Gravity

Realistic stellar anisotropic model satisfying Karmarker condition in f(R, T) gravity

Study on Anisotropic Strange Stars in f ( T , T ) Gravity

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