Corpus ID: 236950594

Unstable modes of hypermassive compact stars driven by viscosity and gravitational radiation

@inproceedings{Rau2021UnstableMO,
  title={Unstable modes of hypermassive compact stars driven by viscosity and gravitational radiation},
  author={Peter B. Rau and Armen Sedrakian},
  year={2021}
}
We study the oscillations modes of differential rotating remnants of binary neutron star inspirals by modeling them as incompressible Riemann ellipsoids parametrized by the ratio f of their internal circulation to the rotation frequency. The effects of viscosity and gravitational wave radiation on the modes are studied and it is shown that these bodies exhibit generic instabilities towards gravitational wave radiation akin to the Chandrasekhar–Friedman–Schutz instabilities for uniformly… Expand

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