On Charged Analogues of Buchdahl'S Type Fluid Spheres

Details On Charged Analogues of Buchdahl'S Type Fluid Spheres On Charged Analogues of Buchdahl'S Type Fluid Spheres

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ap%26ss.299...43g&link_type=abstract

Astrophysics and Space Science, Volume 299, Issue 1, pp.43-59

Astronomy and Astrophysics

Astrophysics

14

Einstein&Ndash, Maxwell Equations, Relativistic Charged Stars

Scientific paper

In this article the charged analogues of recently derived Buchdahl’s type fluid spheres have been obtained by considering a particular form of electric field intensity. In this process, Einstein Maxwell field equations yield eight different classes of solutions, joining smoothly with the exterior Reissner Nordstrom metric at the pressure free intersurface. Out of the eight solutions only seven could be utilized to represent superdense star models with ultrahigh surface density of the order 2×1014 gm cm-3. The maximum masses of the star models were found to be 8.223931MΘ and 8.460857MΘ subject to strong and weak energy conditions, respectively, which are much higher than the maximum masses 3.82MΘ and 4.57MΘ allowed in the neutral cases. The velocity of sound seen to be less than that of light throughout the star models.

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