Publications (17)
A novel approach to infer population and cosmological properties with gravitational waves standard sirens and galaxy surveys
Simone Mastrogiovanni, Danny Laghi, Rachel Gray +7
Gravitational wave (GW) sources at cosmological distances can be used to probe the expansion rate of the Universe. GWs directly provide a distance estimation of the source but no d…
The impact of strong lensing on Hubble constant measurements with gravitational-wave dark sirens
Eungwang Seo, Kyungmin Kim, Zhuotao Li +3
The disagreement between early and late Universe electromagnetic measurements of the Hubble constant, , known as the Hubble tension, highlights the need for independent and co…
Constraints on coasting cosmological models from gravitational-wave standard sirens
Peter Raffai, Mária Pálfi, Gergely Dálya +1
We present the first test of coasting cosmological models with gravitational-wave standard sirens observed in the first three observing runs of the LIGO-Virgo-KAGRA detector networ…
Cosmological Inference using Gravitational Wave Standard Sirens: A Mock Data Challenge
Rachel Gray, Ignacio Magaña Hernandez, Hong Qi +12
The observation of binary neutron star merger GW170817, along with its optical counterpart, provided the first constraint on the Hubble constant using gravitational wave stan…
Characterization of systematic error in Advanced LIGO calibration
Ling Sun, Evan Goetz, Jeffrey S. Kissel +23
The raw outputs of the detectors within the Advanced Laser Interferometer Gravitational-Wave Observatory need to be calibrated in order to produce the estimate of the dimensionless…
Point absorbers in Advanced LIGO
Aidan F. Brooks, Gabriele Vajente, Hiro Yamamoto +198
Small, highly absorbing points are randomly present on the surfaces of the main interferometer optics in Advanced LIGO. The resulting nano-meter scale thermo-elastic deformations a…
Testing the nature of gravitational wave propagation using dark sirens and galaxy catalogues
Anson Chen, Rachel Gray, Tessa Baker
The dark sirens method enables us to use gravitational wave events without electromagnetic counterparts as tools for cosmology and tests of gravity. Furthermore, the dark sirens an…
Impact of modelling galaxy redshift uncertainties on the gravitational-wave dark standard siren measurement of the Hubble constant
Cezary Turski, Maciej Bilicki, Gergely Dálya +2
Gravitational wave science is a new and rapidly expanding field of observational astronomy. Multimessenger observations of the binary neutron star merger GW170817 have provided som…
ICAROGW: A python package for inference of astrophysical population properties of noisy, heterogeneous and incomplete observations
Simone Mastrogiovanni, Grégoire Pierra, Stéphane Perriès +6
We present icarogw 2.0, a pure CPU/GPU python code developed to infer astrophysical and cosmological population properties of noisy, heterogeneous, and incomplete observations. ica…
Blinded Mock Data Challenge for Gravitational-Wave Cosmology-I: Assessing the Robustness of Methods Using Binary Black Holes Mass Spectrum
Aman Agarwal, Ulyana Dupletsa, Konstantin Leyde +18
Gravitational Wave (GW) sources are standard sirens that provide an independent way to map the cosmic expansion history by combining with an independent redshift measurement either…
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…
Using gravitational wave dark sirens to choose between host galaxy weighting models
Zhuotao Li, Rachel Gray, Ik Siong Heng
Binary black hole (BBH) mergers,, an important source of gravitational-waves(GWs), are assumed to be hosted in galaxies. The probability of a galaxy to host a BBH is related to its…
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…
Joint cosmological and gravitational-wave population inference using dark sirens and galaxy catalogues
Rachel Gray, Freija Beirnaert, Christos Karathanasis +11
In the absence of numerous gravitational-wave detections with confirmed electromagnetic counterparts, the "dark siren" method has emerged as a leading technique of gravitational-wa…
A Pixelated Approach to Galaxy Catalogue Incompleteness: Improving the Dark Siren Measurement of the Hubble Constant
Rachel Gray, Chris Messenger, John Veitch
The use of gravitational wave standard sirens for cosmological analyses is becoming well known, with particular interest in measuring the Hubble constant, , and in shedding li…
Golden and Silver Dark Sirens for precise H0 measurement with HETDEX
Yixuan Dang, Ish Gupta, Robin Ciardullo +12
Gravitational waves (GWs) from compact binary coalescences are standard sirens that provide a direct measure of the source's luminosity distance, enabling an independent measuremen…
The Hitchhiker's guide to the galaxy catalog approach for gravitational wave cosmology
Jonathan R. Gair, Archisman Ghosh, Rachel Gray +28
We outline the ``dark siren'' galaxy catalog method for cosmological inference using gravitational wave (GW) standard sirens, clarifying some common misconceptions in the implement…