12 papers
Revealing massive black hole astrophysics: The potential of hierarchical inference with extreme mass-ratio inspiral observations
Shashwat Singh, Christian E. A. Chapman-Bird, Christopher P. L. Berry +1
The paper investigates how observations of extreme mass-ratio inspirals by LISA can be used with hierarchical Bayesian inference to measure massive black hole population properties…
Measurement of the Hubble constant using the Dark Energy Survey Year 6 Gold galaxy catalogue and the fourth Gravitational-Wave Transient Catalogue
Isaac McMahon, Danny Laghi, Marcelle Soares-Santos +9
Gravitational wave (GW) standard sirens enable independent measurements of the Hubble constant . In the absence of electromagnetic counterparts, the 'dark siren' method statis…
GWTC-5.0: Constraints on the Cosmic Expansion Rate and Modified Gravitational-wave Propagation
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1810
We employ 236 gravitational-wave (GW) sources in the fifth LIGO--Virgo--KAGRA Collaboration (LVK) Gravitational-Wave Transient Catalog (GWTC-5.0) to estimate the Hubble constant $H…
Scalable Dark Siren Cosmology with gwcosmo: GPU Acceleration, Validation and Systematics
Alexander Papadopoulos, Christian E. A. Chapman-Bird, Rachel Gray +2
As the number of confident gravitational-wave detections grows, population-level hierarchical analyses face increasing computational costs. Dark-siren cosmological inference integr…
Global time-frequency search for stellar-mass binary black holes in LISA
Diganta Bandopadhyay, Christian E. A. Chapman-Bird, Alberto Vecchio
We present a complete pipeline for detecting and characterizing gravitational waves (GWs) produced by the inspiral of stellar-mass binary black holes in data from the Laser Interfe…
Constraints on the extreme mass-ratio inspiral population from LISA data
Shashwat Singh, Christian E. A. Chapman-Bird, Christopher P L Berry +1
Gravitational waves from extreme mass-ratio inspirals (EMRIs), the inspirals of stellar-mass compact objects into massive black holes, are predicted to be observed by the Laser Int…