https://doi.org/10.1140/epjc/s10052-018-5930-x
Regular Article - Theoretical Physics
Anisotropic strange stars in the Einstein–Maxwell spacetime
1
Department of Physics, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal, 711103, India
2
National Research Nuclear University “MEPHI” (Moscow Engineering Physics Institute), Moscow, 115409, Russia
3
Centre for Cosmoparticle Physics “Cosmion”, Moscow, 115409, Russia
4
APC Laboratory, 10, rue Alice Domon et Lonie Duquet, 75205, Paris Cedex 13, France
5
Department of Mathematics, Jadavpur University, Kolkata, West Bengal, 700032, India
6
Department of Physics, Government College of Engineering and Ceramic Technology, Kolkata, West Bengal, 700010, India
* e-mail: saibal@associates.iucaa.in
Received:
5
February
2018
Accepted:
24
May
2018
Published online:
8
June
2018
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), 
, where B is the bag constant and the distribution of the electrical charge is given as 
, where 
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 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 
and electric field of the order 
V/cm.
© The Author(s), 2018
