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    A class of super dense stars models using charged analogues of Hajj-Boutros type relativistic fluid solutions

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    Date
    2014-10
    Publisher
    © 2014, Springer Science+Business Media New York
    Author
    Pant, Neeraj
    Pradhan, Nirakar
    Murad, Mohammad Hassan
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/10361/7152
    Citation
    Pant, N., Pradhan, N., & Murad, M. H. (2014). A class of super dense stars models using charged analogues of hajj-boutros type relativistic fluid solutions. International Journal of Theoretical Physics, 53(11), 3958-3969. doi:10.1007/s10773-014-2147-0
    Abstract
    We present a spherically symmetric solution of the general relativistic field equations in isotropic coordinates for perfect charged fluid, compatible with a super dense star modeling. The solution is well behaved for all the values of Schwarzschild parameter u lying in the range 0 < u < 0.1727 for the maximum value of charge parameter K = 0.08163. The maximum mass of the fluid distribution is calculated by using stellar surface density as ρb = 4.6888×1014g cm−3. Corresponding to K = 0.08 and umax = 0.1732, the resulting well behaved solution has a maximum mass M = 0.9324M⊙ and radius R = 8.00 and by assuming ρb = 2×1014g cm−3 the solution results a stellar configuration with maximum mass M = 1.43M⊙ and radius Rb = 12.25 km. The maximum mass is found increasing with increasing K up to 0.08. The well behaved class of relativistic stellar models obtained in this work might has astrophysical significance in the study of internal structure of compact star such as neutron star or self-bound strange quark star like Her X-1.
    Keywords
    Charged fluid sphere; Compact stars; Equation of state; Exact solution; General relativity; Isotropic coordinates; Perfect fluid sphere; Reissner-Nordström; Relativistic astrophysics; Relativistic stars
     
    Description
    This article was published in the International Journal of Theoretical Physics [© 2014, Springer Science+Business Media New Yor] and the definite version is available at : http://dx.doi.org/10.1007/s10773-014-2147-0. The Journal's website is at: http://link.springer.com/article/10.1007%2Fs10773-014-2147-0
    Publisher Link
    http://link.springer.com/article/10.1007%2Fs10773-014-2147-0
    DOI
    http://dx.doi.org/10.1007/s10773-014-2147-0
    Department
    Department of Mathematics and Natural Sciences, BRAC University
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