Stability and improved physical characteristics of relativistic compact objects arising from the quadratic term in $$p_r = \alpha \rho ^2 + \beta \rho - \gamma $$ p r = α ρ 2 + β ρ - γ
Abstract We investigate the stability and enhancement of the physical characteristics of compact, relativistic objects which follow a quadratic equation of state. To achieve this, we make use of the Vaidya–Tikekar metric potential. This gravitational potential has been shown to be suitable for descr...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2021-01-01
|
| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-020-08799-7 |
| _version_ | 1828932090583842816 |
|---|---|
| author | S. Thirukkanesh Robert S. Bogadi Megandhren Govender Sibusiso Moyo |
| author_facet | S. Thirukkanesh Robert S. Bogadi Megandhren Govender Sibusiso Moyo |
| author_sort | S. Thirukkanesh |
| collection | DOAJ |
| description | Abstract We investigate the stability and enhancement of the physical characteristics of compact, relativistic objects which follow a quadratic equation of state. To achieve this, we make use of the Vaidya–Tikekar metric potential. This gravitational potential has been shown to be suitable for describing superdense stellar objects. Pressure anisotropy is also a key feature of our model and is shown to play an important role in maintaining stability. Our results show that the combination of the Vaidya–Tikekar gravitational potential used together with the quadratic equation of state provide models which are favourable. In comparison with other equations of state, we have shown that the quadratic equation of state mimics the colour-flavour-locked equation of state more closely than the linear equation of state. |
| first_indexed | 2024-12-14T00:56:18Z |
| format | Article |
| id | doaj.art-ec14ba299a7f4485b30a7f3cbc3d373a |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-14T00:56:18Z |
| publishDate | 2021-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-ec14ba299a7f4485b30a7f3cbc3d373a2022-12-21T23:23:32ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522021-01-018111710.1140/epjc/s10052-020-08799-7Stability and improved physical characteristics of relativistic compact objects arising from the quadratic term in $$p_r = \alpha \rho ^2 + \beta \rho - \gamma $$ p r = α ρ 2 + β ρ - γS. Thirukkanesh0Robert S. Bogadi1Megandhren Govender2Sibusiso Moyo3Department of Mathematics, Faculty of Science, Eastern UniversityDepartment of Mathematics, Faculty of Applied Sciences, Durban University of TechnologyDepartment of Mathematics, Faculty of Applied Sciences, Durban University of TechnologyDepartment of Mathematics, Faculty of Applied Sciences, Durban University of TechnologyAbstract We investigate the stability and enhancement of the physical characteristics of compact, relativistic objects which follow a quadratic equation of state. To achieve this, we make use of the Vaidya–Tikekar metric potential. This gravitational potential has been shown to be suitable for describing superdense stellar objects. Pressure anisotropy is also a key feature of our model and is shown to play an important role in maintaining stability. Our results show that the combination of the Vaidya–Tikekar gravitational potential used together with the quadratic equation of state provide models which are favourable. In comparison with other equations of state, we have shown that the quadratic equation of state mimics the colour-flavour-locked equation of state more closely than the linear equation of state.https://doi.org/10.1140/epjc/s10052-020-08799-7 |
| spellingShingle | S. Thirukkanesh Robert S. Bogadi Megandhren Govender Sibusiso Moyo Stability and improved physical characteristics of relativistic compact objects arising from the quadratic term in $$p_r = \alpha \rho ^2 + \beta \rho - \gamma $$ p r = α ρ 2 + β ρ - γ European Physical Journal C: Particles and Fields |
| title | Stability and improved physical characteristics of relativistic compact objects arising from the quadratic term in $$p_r = \alpha \rho ^2 + \beta \rho - \gamma $$ p r = α ρ 2 + β ρ - γ |
| title_full | Stability and improved physical characteristics of relativistic compact objects arising from the quadratic term in $$p_r = \alpha \rho ^2 + \beta \rho - \gamma $$ p r = α ρ 2 + β ρ - γ |
| title_fullStr | Stability and improved physical characteristics of relativistic compact objects arising from the quadratic term in $$p_r = \alpha \rho ^2 + \beta \rho - \gamma $$ p r = α ρ 2 + β ρ - γ |
| title_full_unstemmed | Stability and improved physical characteristics of relativistic compact objects arising from the quadratic term in $$p_r = \alpha \rho ^2 + \beta \rho - \gamma $$ p r = α ρ 2 + β ρ - γ |
| title_short | Stability and improved physical characteristics of relativistic compact objects arising from the quadratic term in $$p_r = \alpha \rho ^2 + \beta \rho - \gamma $$ p r = α ρ 2 + β ρ - γ |
| title_sort | stability and improved physical characteristics of relativistic compact objects arising from the quadratic term in p r alpha rho 2 beta rho gamma p r α ρ 2 β ρ γ |
| url | https://doi.org/10.1140/epjc/s10052-020-08799-7 |
| work_keys_str_mv | AT sthirukkanesh stabilityandimprovedphysicalcharacteristicsofrelativisticcompactobjectsarisingfromthequadraticterminpralpharho2betarhogammaprar2brg AT robertsbogadi stabilityandimprovedphysicalcharacteristicsofrelativisticcompactobjectsarisingfromthequadraticterminpralpharho2betarhogammaprar2brg AT megandhrengovender stabilityandimprovedphysicalcharacteristicsofrelativisticcompactobjectsarisingfromthequadraticterminpralpharho2betarhogammaprar2brg AT sibusisomoyo stabilityandimprovedphysicalcharacteristicsofrelativisticcompactobjectsarisingfromthequadraticterminpralpharho2betarhogammaprar2brg |