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Moment of inertia of a neutron star. II. Relativistic corrections

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Abstract

In part I we suggested an approximate equation to determine the contribution of relativistic effects to the moment of inertia of a superdense star. In the present paper it is tested on model neutron stars with nine different variants of the equation of state of superdense matter. It is established that the approximation error does not exceed 5% for stable configurations. A more accurate version of the Ravenhall—Pethick equation [D. G. Ravenhall and C. J. Pethick, Astrophys. J., 424, 846 (1994)] for the moment of inertia as a function of the mass and radius of a neutron star is derived.

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Authors and Affiliations

  1. Institute of Applied Physics Problems, Armenia

    L. Sh Grigorian & H. F. Khachatrian

  2. Erevan State University, Armenia

    L. Sh Grigorian & H. F. Khachatrian

Authors
  1. L. Sh Grigorian
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  2. H. F. Khachatrian
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Translated from Astrofizika, Vol. 40, No. 4, pp. 507–516, October–December, 1997.

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Grigorian, L.S., Khachatrian, H.F. Moment of inertia of a neutron star. II. Relativistic corrections. Astrophysics 40, 327–334 (1997). https://doi.org/10.1007/BF03036021

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  • DOI: https://doi.org/10.1007/BF03036021

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