Description
Gravitational wave (GW) standard sirens enable independent measurements of the Hubble constant 𝐻0. In the absence of electromagnetic counterparts, the "dark siren" method statistically correlates GW events with potential host galaxies. We present a measurement of 𝐻0 using compact binary coalescences from the fifth Gravitational-Wave Transient Catalog, combined with the Dark Energy Legacy Volume Explorer Data Release 3 photometric galaxy catalog. Using the gwcosmo pipeline, we jointly infer cosmological and GW population parameters. We analyze the impact of galaxy catalog properties on the inference, and will present our H0 constraint. Finally, we will discuss the future of standard siren cosmology with the Legacy Survey of Space and Time (LSST).