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gr-qc2023★ 9 cited
Kerr Black Hole in Einstein--Æther Gravity
Edgardo Franzin, Stefano Liberati, Jacopo Mazza
While non-rotating black-hole solutions are well known in Einstein--æther gravity, no axisymmetric solutions endowed with Killing horizons have been so far found outside of the slo…
gr-qc2023★ 37 cited
From regular black holes to horizonless objects: quasi-normal modes, instabilities and spectroscopy
Edgardo Franzin, Stefano Liberati, Vania Vellucci
We study gravitational and test-field perturbations for the two possible families of spherically symmetric black-hole mimickers that smoothly interpolate between regular black hole…