Non-linear Evolution of Rotating Relativistic Stars

Details Non-linear Evolution of Rotating Relativistic Stars Non-linear Evolution of Rotating Relativistic Stars

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.494s&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present first results of the non-linear evolution of rotating relativistic stars obtained with a 2-D relativistic hydrodynamics code in a fixed background geometry. As initial data we use axisymmetric configurations, which are perturbed from their stationary equilibrium using quasi-normal mode eigenfunctions. We follow the evolution over many hydrodynamical timescales and study the non-linear dynamics of radial and non-radial oscillations. This investigation is ultimately aimed at the study of the growth of the gravitational radiation driven non-axisymmetric instability in the fundamental (f) and rotational (r) mode of oscillation, which is a promising source of gravitational radiation in newly-born neutron stars.

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