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gr-qc2024★ 2 cited
Ergoregion instability in a fluid with vorticity
Leandro A. Oliveira, Carolina L. Benone, Luís C. B. Crispino
We investigate perturbations in a rotational and incompressible fluid flow. Interested in the phenomenon analogous to the black hole ergoregion instability, we verify the influence…
gr-qc2024★ 11 cited
Radial stability of spherical bosonic stars and critical points
Nuno M. Santos, Carolina L. Benone, Carlos A. R. Herdeiro
We study radial perturbations of spherically symmetric spin- and spin- bosonic stars, computing numerically the squared frequency of the fundamental mode. We find that not al…