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Quasi-Radial Modes of Pulsating Neutron Stars: Numerical Results for General-Relativistic Rigidly Rotating Polytropic Models

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DOI: 10.4236/ijaa.2014.43041    2,061 Downloads   2,503 Views  

ABSTRACT

In this paper we compute general-relativistic polytropic models simulating rigidly rotating, pulsating neutron stars. These relativistic compact objects, with a radius of ~10 km and mass between ~1.4 and 3.2 solar masses, are closely related to pulsars. We emphasize on computing the change in the pulsation eigenfrequencies owing to a rigid rotation, which, in turn, is a decisive issue for studying stability of such objects. In our computations, we keep rotational perturbation terms of up to second order in the angular velocity.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Geroyannis, V. and Tzelati, E. (2014) Quasi-Radial Modes of Pulsating Neutron Stars: Numerical Results for General-Relativistic Rigidly Rotating Polytropic Models. International Journal of Astronomy and Astrophysics, 4, 453-463. doi: 10.4236/ijaa.2014.43041.

References

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