359 citations · 2.6k across the 46 of their papers we have counts for
29 papers · 1 filter
Say Hello, Wave Goodbye: Gravitational Waves from Hyperbolic PBH-SMBH Interactions
Laura Burn, Nelson Christensen, Richard Easther
Primordial black holes (PBHs) formed in the early Universe remain a viable dark matter candidate. Since dark matter is expected to be concentrated toward galactic centres, a signif…
Stone Skipping Black Holes in Ultralight Dark Matter Solitons
Alan Zhang, Yourong Wang, J. Luna Zagorac +1
The orbit of a black hole moving within an ultralight dark matter (ULDM) soliton is naively expected to decay due to dynamical friction. However, in isolated near-circular soliton-…
Ultralight Dark Matter Constraints from NanoHertz Gravitational Waves
Shreyas Tiruvaskar, Russell Boey, Richard Easther +1
We investigate the impact of ultralight dark matter (ULDM) on the mergers of supermassive black holes (SMBH) and the resulting stochastic gravitational wave background. ULDM is bas…
Realistic Oscillon Interactions
Angela Xue, Kyle Chen, Baylee Verzyde +2
Oscillons are long-lived nonlinear pseudo-solitonic configurations of scalar fields and many plausible inflationary scenarios predict an oscillon-dominated phase in the early unive…
Supermassive Binaries in Ultralight Dark Matter Solitons
Russell Boey, Emily Kendall, Yourong Wang +1
Ultralight (or fuzzy) dark matter (ULDM) is an alternative to cold dark matter. A key feature of ULDM is the presence of solitonic cores at the centers of collapsed halos. These wo…
Dynamical Friction and Black Holes in Ultralight Dark Matter Solitons
Russell Boey, Yourong Wang, Emily Kendall +1
We numerically simulate the motion of a black hole as it plunges radially through an ultralight dark matter soliton. We investigate the timescale in which dynamical friction reduce…