output
20182025
most citedDark Matter Annihilation to Neutrinos

141 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing gr-qcShow all

6 papers · 1 filter

gr-qc2023★ 24 cited

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…

gr-qc2023★ 19 cited

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…

gr-qc2023★ 25 cited

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…

gr-qc2023★ 36 cited

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…

gr-qc2022★ 54 cited

SuperRad: Modeling the black hole superradiance gravitational waveform

Nils Siemonsen, Taillte May, William E. East

Gravitational signatures of black hole superradiance are a unique probe of ultralight particles that are weakly-coupled to ordinary matter. The existence of an ultralight boson wou…

gr-qc2018★ 1 cited

Gravitational fermion creation during an anisotropic phase of cosmological expansion

Amit Bhoonah

The free Dirac equation is solved in a Bianchi Type I space-time, which represents a homogeneous but anisotropic universe, to show the creation of fermionic particles. It is found…