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Frutos-Alfaro, F. and Soffel, M. (2015) On the Post-Linear Quadrupole-Quadrupole Metric.
http://arxiv.org/abs/1507.04264

has been cited by the following article:

• TITLE: Approximate Kerr-Like Metric with Quadrupole

  AUTHORS: Francisco Frutos-Alfaro

  KEYWORDS: General Relativity, Einstein Field Equations, Quadrupole Moment

  JOURNAL NAME: International Journal of Astronomy and Astrophysics, Vol.6 No.3, September 29, 2016

  ABSTRACT: A new approximate metric representing the spacetime of a rotating deformed body is obtained by perturbing the Kerr metric to include up to the second order of the quadrupole moment. It has a simple form, because it is Kerr-like. Its Taylor expansion form coincides with second order quadrupole metrics with slow rotation already found. Moreover, it can be transformed to an improved Hartle-Thorne metric, which guarantees its validity to be useful in studying compact object, and it is possible to find an inner solution.