76 citations · 99 across the 2 of their papers we have counts for
3 papers
Searching for ultralight bosons with supermassive black hole ringdown
Adrian Ka-Wai Chung, Joseph Gais, Mark H. Y. Cheung +1
One class of competitive candidates for dark matter is ultralight bosons. If they exist, these bosons may form long-lived bosonic clouds surrounding rotating black holes via superr…
Stellar-mass microlensing of gravitational waves
Mark H. Y. Cheung, Joseph Gais, Otto A. Hannuksela +1
When gravitational waves pass through the nuclear star clusters of galactic lenses, they may be microlensed by the stars. Such microlensing can cause potentially observable beating…
Ringdown Spectroscopy of Rotating Black Holes Pierced by Cosmic Strings
Mark Ho-Yeuk Cheung, Levi Wing-Hei Poon, Ka-Wai Chung +1
Multiple gauge theories predict the presence of cosmic strings with different mass densities . We derive an equation governing the perturbations of a rotating black hole pi…