Abstract
We obtain a well behaved class of charge analogues of neutral superdense star model due to Kuchowicz, by using a particular electric field, which involves a parameter K and vanishes when K=0. The members of this class are seen to satisfy the various physical conditions e.g. c 2 ρ≥3p≥0, dp/dr<0, dρ/dr<0, along with the velocity of sound, dp/c 2 dρ<1 and the adiabatic index ((p+c 2 ρ)/p)(dp/(c 2 dρ))>1, for the interval 0<K<1 with the maximum mass 6.8374M Θ and the radius 23.4679 km with the central red shift Z c =0.75364. In the interval, 0<K≤0.1179, the velocity of sound and the ratio p/c 2 ρ are found monotonically decreasing towards the pressure free interface, which presents a relevant model for massive star like Neutron star or pulsar with the maximum mass as 4.1474M Θ and the radius 20.5481 km with the central red shift Z c =0.6654.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Bijalwan, N., Gupta, Y.K.: Astrophys. Space Sci. 317, 251–260 (2008)
Dionysiou, D.D.: Astrophys. Space Sci. 85, 331 (1982)
Delgaty, M.S.R., Lake, K.: Comput. Phys. Commun. 115, 395 (1998)
Florides, P.S.: J. Phys. A, Math. Gen. 16, 1419 (1983)
Gupta, Y.K., Kumar, M.: Gen. Relativ. Gravit. 37(1), 575 (2005)
Gupta, Y.K., Maurya, S.K.: Astrophys. Space Sci. (2010a). doi:10.1007/s10509-010-445-4
Gupta, Y.K., Maurya, S.K.: Astrophys. Space Sci. (2010b). doi:10.1007/s10509-010-0503-y
Kuchowicz, B.: Relativistic spheres as models of neutron stars. Report-Nuclear Energy Information Center NEIC-RR-28 (1967)
Neeraj Pant, et al.: Astrophys. Space Sci. (2010a). doi:10.1007/s10509-010-0383-1
Neeraj Pant, et al.: Astrophys. Space Sci. (2010b). doi:10.1007/s10509-010-0453-4
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Gupta, Y.K., Maurya, S.K. A class of regular and well behaved charge analogue of Kuchowicz’s relativistic super-dense star model. Astrophys Space Sci 332, 415–421 (2011). https://doi.org/10.1007/s10509-010-0523-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10509-010-0523-7