ON THE STRUCTURE AND STABILITY OF NEUTRON STARS. A GENERAL RELATIVISTIC APPROACH
Keywords:
Neutron Stars, Computational Physics, Theoretical Physics, Astrophysics.Abstract
The structure of Neutron Stars (NS) is still unclear and for this reason this paper serves as an attempt to couple the Tolman-Oppenheimer-Volkoff (TOV) equations with a polytropic Equation of State (EoS). For different EoS models coupled with the relativistic TOV equations it could be calculated the critical mass and radius for a neutron star, underlining consequences of the type of EoS used on the mass-radius stable configurations of the NS. Another briefly investigated topic in this paper is to see if the positive cosmological constant bears any role in the evolution of the neutron star.
References
S. Weinberg, “Gravitation and Cosmology: Principles and Applications of General Theory of Relativity”, S. Weinberg, John Wiley & Sons Inc, 1972.
J.R. Oppenheimer, G.M. Volkoff, Physical Review Letters Vol.55, Pg.374-381, 1939.
J.M Blatt, V.F. Weisskopf, ”Theoretical Nuclear Physics”, John Wiley & Sons, 1952.
T.L. Ainsworth, E. Baron, G.E. Brown, J. Cooperstein and M. Prakash, Nucl. Phys. A464 (1987) 740-768.
Jan Helm, “New Solutions to the TOV equation and on Kerr space-time with matter and the corresponding star models”, 2014.
P. Haensel, A.Y. Potekhin, D.G. Yakovlev, “Neutron Stars I Equation of State and structure”, Springer 2007.
Nicolas Chamel and Paweł Haensel, Living Rev. Relativity 11, 2008.
Richard Silbar, Sanjay Reddy, “Neutron stars”, 2004.
S. Marongwe, International Journal of Astronomy and Astrophysics, Vol. 3 No. 3, 2013, pp. 236-242.
M. Prakash and K.S. Bedell, Phys. Rev. Rapid Communications C32 (1985) 1118-1121.
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