401 citations · 4.1k across the 78 of their papers we have counts for
78 papers
Constraints on ultralight bosons from merging binary and remnant black holes observed during the second and third parts of the fourth LIGO-Virgo-KAGRA observing run
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1808
We present constraints on ultralight bosons using binary black hole mergers observed in the second and third parts of the fourth LIGO-Virgo-KAGRA observing run. Directed searches a…
Probing ultralight bosons with LISA observations of spinning black hole mergers and follow-up searches of merger remnants
Ifigeneia Giannakoudi, Maxence Corman, William E. East
Ultralight bosons can trigger superradiant instabilities around rotating black holes, extracting angular momentum and leading in some cases to observable gravitational signatures.…
Binary neutron star mergers with a subsolar mass star
Maxence Corman, William E. East, Jocelyn S. Read
While there are a number of proposed formation channels for subsolar mass compact objects, including black holes formed primordially, or neutron stars that form in collapsar disks,…
Nonlinear evolution of the ergoregion instability: Turbulence, bursts of radiation, and black hole formation
Nils Siemonsen, William E. East
Spacetimes with an ergoregion that is not connected to a horizon are linearly unstable. While the linear regime has been studied in a number of settings, little is known about the…
Implications of GW241011 for rotating exotic compact objects
N. V. Krishnendu, Tamara Evstafyeva, Aditya Vijaykumar +17
A number of theoretical proposals have been made for horizonless compact objects with masses and spins similar to those of black holes. While gravitational wave signatures from the…
Gravitational collapse in the vicinity of the extremal black hole critical point
William E. East
We study the threshold of gravitational collapse in spherically symmetric spacetimes governed by the Einstein-Maxwell-Vlasov equations. We numerically construct solutions describin…