247 citations · 597 across the 27 of their papers we have counts for
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gr-qc2018★ 247 cited
Constraining the mass of dark photons and axion-like particles through black-hole superradiance
Vitor Cardoso, Óscar J. C. Dias, Gavin S. Hartnett +3
Ultralight bosons and axion-like particles appear naturally in different scenarios and could solve some long-standing puzzles. Their detection is challenging, and all direct method…
gr-qc2013★ 22 cited
Non-Axisymmetric Instability of Rotating Black Holes in Higher Dimensions
Gavin S. Hartnett, Jorge E. Santos
We calculate the scalar-gravitational quasi-normal modes of equal angular momenta Myers-Perry black holes in odd dimensions. We find a new bar-mode (non-axisymmetric) classical ins…