364 citations · 1.1k across the 33 of their papers we have counts for
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Dynamical pairing in gravitational wave populations
Fabio Antonini, Aleksandra Olejak, Isobel Romero-Shaw +1
Binary black holes formed dynamically in star clusters are often associated with nearly equal-mass pairing. We show that this expectation is incomplete. The more general prediction…
Mass and spin properties of black-hole mergers reveal formation in triples
Jakob Stegmann, Aleksandra Olejak
Deciphering the formation channels of the observed binary black hole mergers remains a central open problem in gravitational-wave astronomy. With hundreds of detections, the inferr…
Evolution of Main Sequence Stars Transferring Mass to a Supermassive Black Hole
Andrey Sandomirsky, Re'em Sari, Aleksandra Olejak +1
We consider main-sequence stars orbiting close to a supermassive black hole (SMBH), which are potential gravitational wave (GW) sources for LISA if their orbital periods are of the…
Distinct spin properties and astrophysical origin of low mass binary black holes in gravitational wave data
Elizabeth Flanagan, Jakob Stegmann, Isobel Romero-Shaw +3
We analyze the effective-spin distribution of binary black hole mergers in GWTC-5.0 as a function of primary black hole mass using hierarchical Bayesian inference. We model the pop…
Binary Evolution Can Mimic the Pair-Instability Mass Gap in Black Hole Mergers
Aleksandra Olejak, Jakob Stegmann
The recent O4 catalogs from the LIGO-Virgo-KAGRA collaboration, which significantly increased the number of gravitational-wave (GW) detections, reveal features with potentially imp…
Remnant recoil and host environments of GWTC-4.0 binary black-hole mergers
Joan Llobera-Querol, Eleanor Hamilton, Neha Singh +8
Determining the astrophysical origin of binary black holes and whether merger remnants are retained in their birth environments is essential for understanding hierarchical mergers…