9 papers
When the black holes align: a subpopulation of aligned massive binary black holes observed via gravitational waves
Stefano Rinaldi, Charmaine Wong, M. Paola Vaccaro +4
In this work, we investigate the features present in the joint primary mass and effective spin distribution of binary black holes without relying on specific modelling assumptions.…
Testing cosmological isotropy with gravitational waves and gamma-ray bursts
Brian H. Y. Cheng, Donniel C. Cruz, Otto A. Hannuksela +18
The cosmological principle asserts that the Universe is homogeneous and isotropic on large enough scales. However, alternative cosmological models can bring about anisotropies thro…
A complete measurement of a black-hole recoil through higher-order gravitational-wave modes
Juan Calderón Bustillo, Samson H. W. Leong, Koustav Chandra
General relativity predicts that gravitational waves (GWs) carry linear momentum. Consequently, the remnant black hole of a black-hole merger can inherit a recoil velocity or ``kic…
Kick & spin: new probes for multi-messenger black-hole mergers in AGNs
Samson H. W. Leong, Juan Calderón Bustillo
Recoiling remnants of black-hole mergers in dense environments can produce bright electromagnetic (EM) counterparts to the gravitational-wave (GW) emission. Significance assessment…
Identifying Proca-star mergers via consistent ultralight-boson mass estimates across gravitational-wave events
Ana Lorenzo-Medina, Juan Calderón Bustillo, Samson H. W. Leong
While black-hole and neutron-star mergers are the most plausible sources of current gravitational-wave observations, mergers of exotic compact objects may mimic these signals. Proc…
Gravitational-wave signatures of mirror (a)symmetry in binary black hole mergers: measurability and correlation to gravitational-wave recoil
Samson H. W. Leong, Alejandro Florido Tomé, Juan Calderón Bustillo +2
Precessing binary black-hole mergers can produce a net flux of circularly-polarized gravitational waves. This imbalance between left- and right-handed circularly polarized waves, q…