A class of relativistic anisotropic charged stellar models in isotropic coordinates
This article was published in the Journal of Astrophysics and Space Science [© 2014, Springer Science+Business Media Dordrecht.] and the definite version is available at : http://dx.doi.org/10.1007/s10509-014-2156-8. The Journal's website is at: http://link.springer.com/article/10.1007%2Fs10509...
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© 2014, Springer Science+Business Media Dordrecht.
2016
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| Online Access: | http://hdl.handle.net/10361/7156 http://dx.doi.org/10.1007/s10509-014-2156-8 |
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10361-71562016-12-07T06:50:30Z A class of relativistic anisotropic charged stellar models in isotropic coordinates Pant, Neeraj Pradhan, Nirakar Murad, Mohammad Hassan Department of Mathematics and Natural Sciences, BRAC University Anisotropic fluid sphere Charged fluid sphere Compact stars Exact solution General relativity Isotropic coordinates Reissner-Nordström Relativistic astrophysics Relativistic stars This article was published in the Journal of Astrophysics and Space Science [© 2014, Springer Science+Business Media Dordrecht.] and the definite version is available at : http://dx.doi.org/10.1007/s10509-014-2156-8. The Journal's website is at: http://link.springer.com/article/10.1007%2Fs10509-014-2156-8 In this present paper, we present a class of static, spherically symmetric charged anisotropic fluid models of super dense stars in isotropic coordinates by considering a particular type of metric potential, a specific choice of electric field intensity E and pressure anisotropy factor Δ which involve parameters K (charge) and α (anisotropy) respectively. The solutions so obtained are utilized to construct the models for super-dense stars like neutron stars and strange quark stars. Our solutions are well behaved within the following ranges of different constant parameters: 4<n≤21.6, 0<K<0.2499, 0≤α≤0.068 and Schwarzschild parameter, 0≤u=GM/c2R≤0.334. With Δ=0 we rediscover the isotropic model of Pant et al. (Astrophys. Space Sci. 352:135, 2014) and with α=0 and K=0 we rediscover the isotropic neutral model of Murad and Pant (Astrophys. Space Sci. 350:349, 2014). It has been observed that with the increase of α maximum mass decreases. We also present models of super dense star like neutron and quark star based on the particular solution taking n=4.35, α=0.002, K=0.2062 for which u has maximum value umax=0.306. By assuming surface density ρb=4.6888×1014 g cm−3 the resulting well behaved solution has a maximum quark star mass M=2.02 M⊙ and radius R=9.78 km; and the choice ρb=2.7×1014 g cm−3 results charged fluid ball of maximum mass M=2.66 M⊙ and radius R=12.89 km. Published 2016-12-07T06:47:51Z 2016-12-07T06:47:51Z 2014 Article Pant, N., Pradhan, N., & Murad, M. H. (2014). A class of relativistic anisotropic charged stellar models in isotropic coordinates. Astrophysics and Space Science, 355(1), 137-145. doi:10.1007/s10509-014-2156-8 0004640X http://hdl.handle.net/10361/7156 http://dx.doi.org/10.1007/s10509-014-2156-8 en http://link.springer.com/article/10.1007%2Fs10509-014-2156-8 © 2014, Springer Science+Business Media Dordrecht. |
| institution |
Brac University |
| collection |
Institutional Repository |
| language |
English |
| topic |
Anisotropic fluid sphere Charged fluid sphere Compact stars Exact solution General relativity Isotropic coordinates Reissner-Nordström Relativistic astrophysics Relativistic stars |
| spellingShingle |
Anisotropic fluid sphere Charged fluid sphere Compact stars Exact solution General relativity Isotropic coordinates Reissner-Nordström Relativistic astrophysics Relativistic stars Pant, Neeraj Pradhan, Nirakar Murad, Mohammad Hassan A class of relativistic anisotropic charged stellar models in isotropic coordinates |
| description |
This article was published in the Journal of Astrophysics and Space Science [© 2014, Springer Science+Business Media Dordrecht.] and the definite version is available at : http://dx.doi.org/10.1007/s10509-014-2156-8. The Journal's website is at: http://link.springer.com/article/10.1007%2Fs10509-014-2156-8 |
| author2 |
Department of Mathematics and Natural Sciences, BRAC University |
| author_facet |
Department of Mathematics and Natural Sciences, BRAC University Pant, Neeraj Pradhan, Nirakar Murad, Mohammad Hassan |
| format |
Article |
| author |
Pant, Neeraj Pradhan, Nirakar Murad, Mohammad Hassan |
| author_sort |
Pant, Neeraj |
| title |
A class of relativistic anisotropic charged stellar models in isotropic coordinates |
| title_short |
A class of relativistic anisotropic charged stellar models in isotropic coordinates |
| title_full |
A class of relativistic anisotropic charged stellar models in isotropic coordinates |
| title_fullStr |
A class of relativistic anisotropic charged stellar models in isotropic coordinates |
| title_full_unstemmed |
A class of relativistic anisotropic charged stellar models in isotropic coordinates |
| title_sort |
class of relativistic anisotropic charged stellar models in isotropic coordinates |
| publisher |
© 2014, Springer Science+Business Media Dordrecht. |
| publishDate |
2016 |
| url |
http://hdl.handle.net/10361/7156 http://dx.doi.org/10.1007/s10509-014-2156-8 |
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