196 citations · 3.4k across the 59 of their papers we have counts for
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Classifying the generation and formation channels of individual LIGO-Virgo-KAGRA observations from dynamically formed binaries
Andrea Antonelli, Konstantinos Kritos, Ken K. Y. Ng +2
We address two important questions in gravitational-wave astronomy. What is the astrophysical formation scenario leading to black-hole binary mergers? Did some of the merging black…
Inferring the Intermediate Mass Black Hole Number Density from Gravitational Wave Lensing Statistics
Joseph Gais, Ken Ng, Eungwang Seo +2
The population properties of intermediate mass black holes remain largely unknown, and understanding their distribution could provide a missing link in the formation of supermassiv…
Searching for a subpopulation of primordial black holes in LIGO/Virgo gravitational-wave data
Gabriele Franciolini, Vishal Baibhav, Valerio De Luca +6
With several dozen binary black hole events detected by LIGO/Virgo to date and many more expected in the next few years, gravitational-wave astronomy is shifting from individual-ev…
Constraints on ultralight scalar bosons within black hole spin measurements from LIGO-Virgo's GWTC-2
Ken K. Y. Ng, Salvatore Vitale, Otto A. Hannuksela +1
Clouds of ultralight bosons - such as axions - can form around a rapidly spinning black hole, if the black hole radius is comparable to the bosons' wavelength. The cloud rapidly ex…
Multiband gravitational-wave searches for ultralight bosons
Ken K. Y. Ng, Maximiliano Isi, Carl-Johan Haster +1
Gravitational waves may be one of the few direct observables produced by ultralight bosons, conjectured dark matter candidates that could be the key to several problems in particle…
Searching for ultralight bosons within spin measurements of a population of binary black hole mergers
Ken K. Y. Ng, Otto A. Hannuksela, Salvatore Vitale +1
Ultralight bosons can form clouds around rotating black holes if their Compton wavelength is comparable to the black hole size. The boson cloud spins down the black hole through a…