3 papers
astro-ph.CO2024
Gravitational-wave dark siren cosmology systematics from galaxy weighting
Alexandra G. Hanselman, Aditya Vijaykumar, Maya Fishbach +1
The detection of GW170817 and the measurement of its redshift from the associated electromagnetic counterpart provided the first gravitational wave determination of the Hubble cons…
astro-ph.HE2024
Consistent eccentricities for gravitational wave astronomy: Resolving discrepancies between astrophysical simulations and waveform models
Aditya Vijaykumar, Alexandra G. Hanselman, Michael Zevin
Detecting imprints of orbital eccentricity in GW signals promises to shed light on the formation mechanisms of binary black holes. To constrain formation mechanisms, distributions…
gr-qc2023
Extreme mass-ratio inspiral and waveforms for a spinning body into a Kerr black hole via osculating geodesics and near-identity transformations
Lisa V. Drummond, Philip Lynch, Alexandra G. Hanselman +2
Understanding the orbits of spinning bodies in curved spacetime is important for modeling binary black hole systems with small mass ratios. At zeroth order in mass ratio, the small…