Analytical model of strange star in the low-mass X-ray binary 4U 1820-30
In this article, we propose a model for a realistic strange star under Tolman VII metric (Tolman, Phys Rev 55:364, 1939 ). Here the field equations are reduced to a system of three algebraic equations for anisotropic pressure. Mass, central density and surface density of strange star in the low-mass...
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| Veröffentlicht in: | The European physical journal. C, Particles and fields Particles and fields, 2014-07, Vol.74 (7), p.1-7, Article 2971 |
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| container_title | The European physical journal. C, Particles and fields |
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| creator | Kalam, Mehedi Rahaman, Farook Molla, Sajahan Jafry, Md. Abdul Kayum Hossein, Sk. Monowar |
| description | In this article, we propose a model for a realistic strange star under Tolman VII metric (Tolman, Phys Rev 55:364,
1939
). Here the field equations are reduced to a system of three algebraic equations for anisotropic pressure. Mass, central density and surface density of strange star in the low-mass X-ray binary 4U 1820-30 are matched with the observational data according to our model. Strange materials clearly satisfy the stability condition (i.e. sound velocities
<
1) and TOV equation. Here also the surface redshift of the star is found to be within a reasonable limit. |
| doi_str_mv | 10.1140/epjc/s10052-014-2971-7 |
| format | Article |
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1939
). Here the field equations are reduced to a system of three algebraic equations for anisotropic pressure. Mass, central density and surface density of strange star in the low-mass X-ray binary 4U 1820-30 are matched with the observational data according to our model. Strange materials clearly satisfy the stability condition (i.e. sound velocities
<
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1939
). Here the field equations are reduced to a system of three algebraic equations for anisotropic pressure. Mass, central density and surface density of strange star in the low-mass X-ray binary 4U 1820-30 are matched with the observational data according to our model. Strange materials clearly satisfy the stability condition (i.e. sound velocities
<
1) and TOV equation. 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1939
). Here the field equations are reduced to a system of three algebraic equations for anisotropic pressure. Mass, central density and surface density of strange star in the low-mass X-ray binary 4U 1820-30 are matched with the observational data according to our model. Strange materials clearly satisfy the stability condition (i.e. sound velocities
<
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| subjects | Acoustic velocity Analysis Anisotropy Astronomy Astrophysics and Cosmology Binary stars Density Elementary Particles Hadrons Heavy Ions Mathematical analysis Mathematical models Measurement Science and Instrumentation Nuclear Energy Nuclear Physics Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Red shift Regular Article - Theoretical Physics Sound velocity Specific gravity Stars String Theory Texts X ray binaries X ray stars |
| title | Analytical model of strange star in the low-mass X-ray binary 4U 1820-30 |
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