Nonradial oscillation of strange stars in d dimensions

Arbañil J.D.V.; Lenzi C.H.; Malheiro M. · Journal of Physics: Conference Series (2022) · DOI: 10.1088/1742-6596/2372/1/012003

Resumen

The influence of the dimensions on the f and p 1 pulsation modes from strange quark stars, in the Cowling approximation, are investigated. For that purpose, the d-dimensional nonradial pulsation equations (d > 4) are numerically integrated considering that the Schwarzschild-Tangherlini line element describes the spacetime outside the object. We found that the fluid pulsation modes could become larger than those obtained in four dimensions. In four dimensions, the f pulsation mode is nearly constant, and for high total masses, it increases monotonically and quickly with the total mass. In this mass interval, the f frequencies grow for the spacetime dimensions between 4 and 6 and decay for d larger than 7. Concerning the p 1 pulsation modes, we found that they increase with the spacetime dimension and decline with the increment of the total mass. © Published under licence by IOP Publishing Ltd.

Instituciones: Universidad Nacional Mayor de San Marcos; Universidad Privada del Norte