401 citations · 4.1k across the 78 of their papers we have counts for
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Instability and backreaction of massive spin-2 fields around black holes
William E. East, Nils Siemonsen
A massive spin-2 field can grow unstably around a black hole, giving rise to a potential probe of the existence of such fields. In this work, we use time-domain evolutions to study…
Generic initial data for binary boson stars
Nils Siemonsen, William E. East
Binary boson stars can be used to model the nonlinear dynamics and gravitational wave signals of merging ultracompact, but horizonless, objects. However, doing so requires initial…
Methods and prospects for gravitational wave searches targeting ultralight vector boson clouds around known black holes
Dana Jones, Ling Sun, Nils Siemonsen +3
Ultralight bosons are predicted in many extensions to the Standard Model and are popular dark matter candidates. The black hole superradiance mechanism allows for these particles t…
Binary boson stars: Merger dynamics and formation of rotating remnant stars
Nils Siemonsen, William E. East
Scalar boson stars have attracted attention as simple models for exploring the nonlinear dynamics of a large class of ultra compact and black hole mimicking objects. Here, we study…