Charged compact objects in the linear regime
Abstract
Astrophysical compact stars provide a natural laboratory for testing theoretical models which are otherwise difficult to prove from an experimental setup. In our present work we analyse an exact solution to the EinsteinMaxwell system for a charged anisotropic compact body in the linear regime. The charged parameter may be set to zero which gives us the case of neutral solutions. We have tuned the model parameters for the uncharged case so as to match with recent updated massradius estimates for five different compact objects. Then we make a systematic study of the effect of charge for the different parameter set that fits the observed stars. The effect of charge is clearly illustrated in the increase of mass. We show that the physical quantities for the objects PSR J16142230, PSR J1903+327, Vela X1, SMC X1, Cen X3 are well behaved.
 Publication:

Astrophysics and Space Science
 Pub Date:
 April 2014
 DOI:
 10.1007/s1050901417825
 arXiv:
 arXiv:1412.8121
 Bibcode:
 2014Ap&SS.350..733M
 Keywords:

 Compact bodies;
 Relativistic stars;
 EinsteinMaxwell equations;
 General Relativity and Quantum Cosmology
 EPrint:
 23 pages, Submitted for publication