Anisotropic strange stars in the Einstein–Maxwell spacetime
Abstract We present here a detailed analysis on the effects of charge on the anisotropic strange star candidates by considering a spherically symmetric interior spacetime metric. To obtain exact solution of the Einstein–Maxwell field equations we have considered the anisotropic strange quark matter...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-06-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-018-5930-x |
| _version_ | 1811261718085500928 |
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| author | Debabrata Deb Maxim Khlopov Farook Rahaman Saibal Ray B. K. Guha |
| author_facet | Debabrata Deb Maxim Khlopov Farook Rahaman Saibal Ray B. K. Guha |
| author_sort | Debabrata Deb |
| collection | DOAJ |
| description | Abstract We present here a detailed analysis on the effects of charge on the anisotropic strange star candidates by considering a spherically symmetric interior spacetime metric. To obtain exact solution of the Einstein–Maxwell field equations we have considered the anisotropic strange quark matter (SQM) distribution governed by the simplified MIT bag equation of state (EOS), $$p=\frac{1}{3}\left( {\rho }-4\,B \right) $$ p=13ρ-4B , where B is the bag constant and the distribution of the electrical charge is given as $$q(r)=Q\left( {r}/{R}\right) ^3=\alpha {r^3}$$ q(r)=Qr/R3=αr3 , where $$\alpha $$ α is a constant. To calculate different constants we have described the exterior spacetime by the Reissner-Nordström metric. By using the values of the observed mass for the different strange star candidates we have maximized anisotropic stress at the surface to predict the exact values of the radius for the different values of $$\alpha $$ α and a specific value of the bag constant. Further, we perform different tests to study the physical validity and the stability of the proposed stellar model. We found accumulation of the electric charge distribution is maximum at the surface having electric charge of the order $${{10}^{20}}~C$$ 1020C and electric field of the order $${10}^{21-22}$$ 1021-22 V/cm. |
| first_indexed | 2024-04-12T19:10:48Z |
| format | Article |
| id | doaj.art-03d37940806444d795231db86e99c9fa |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-04-12T19:10:48Z |
| publishDate | 2018-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-03d37940806444d795231db86e99c9fa2022-12-22T03:19:53ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522018-06-0178611310.1140/epjc/s10052-018-5930-xAnisotropic strange stars in the Einstein–Maxwell spacetimeDebabrata Deb0Maxim Khlopov1Farook Rahaman2Saibal Ray3B. K. Guha4Department of Physics, Indian Institute of Engineering Science and TechnologyNational Research Nuclear University “MEPHI” (Moscow Engineering Physics Institute)Department of Mathematics, Jadavpur UniversityDepartment of Physics, Government College of Engineering and Ceramic TechnologyDepartment of Physics, Indian Institute of Engineering Science and TechnologyAbstract We present here a detailed analysis on the effects of charge on the anisotropic strange star candidates by considering a spherically symmetric interior spacetime metric. To obtain exact solution of the Einstein–Maxwell field equations we have considered the anisotropic strange quark matter (SQM) distribution governed by the simplified MIT bag equation of state (EOS), $$p=\frac{1}{3}\left( {\rho }-4\,B \right) $$ p=13ρ-4B , where B is the bag constant and the distribution of the electrical charge is given as $$q(r)=Q\left( {r}/{R}\right) ^3=\alpha {r^3}$$ q(r)=Qr/R3=αr3 , where $$\alpha $$ α is a constant. To calculate different constants we have described the exterior spacetime by the Reissner-Nordström metric. By using the values of the observed mass for the different strange star candidates we have maximized anisotropic stress at the surface to predict the exact values of the radius for the different values of $$\alpha $$ α and a specific value of the bag constant. Further, we perform different tests to study the physical validity and the stability of the proposed stellar model. We found accumulation of the electric charge distribution is maximum at the surface having electric charge of the order $${{10}^{20}}~C$$ 1020C and electric field of the order $${10}^{21-22}$$ 1021-22 V/cm.http://link.springer.com/article/10.1140/epjc/s10052-018-5930-x |
| spellingShingle | Debabrata Deb Maxim Khlopov Farook Rahaman Saibal Ray B. K. Guha Anisotropic strange stars in the Einstein–Maxwell spacetime European Physical Journal C: Particles and Fields |
| title | Anisotropic strange stars in the Einstein–Maxwell spacetime |
| title_full | Anisotropic strange stars in the Einstein–Maxwell spacetime |
| title_fullStr | Anisotropic strange stars in the Einstein–Maxwell spacetime |
| title_full_unstemmed | Anisotropic strange stars in the Einstein–Maxwell spacetime |
| title_short | Anisotropic strange stars in the Einstein–Maxwell spacetime |
| title_sort | anisotropic strange stars in the einstein maxwell spacetime |
| url | http://link.springer.com/article/10.1140/epjc/s10052-018-5930-x |
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