1.4k citations · 7.6k across the 79 of their papers we have counts for
80 papers
Bayesian Galaxy Asymmetry
Mathieu Perron-Cormier, Kristine Spekkens, Nathan Deg +2
Galaxy asymmetry is an efficient way to characterize galaxy morphology in atomic hydrogen 21 cm emission detections. We propose a novel Bayesian approach to calculate the probabili…
Galactic magnetic fields seeded by ultralight dark photons
Joshua Berger, Amit Bhoonah, Joseph Bramante +3
In this work, we show that ultralight dark photons, which couple to the Standard Model photon through kinetic mixing, can potentially source galactic scale magnetic fields. Althoug…
Gaussian Process Methods for Very Large Astrometric Data Sets
Timothy Hapitas, Lawrence M. Widrow, Thavisha E. Dharmawardena +1
We present a novel non-parametric method for inferring smooth models of the mean velocity field and velocity dispersion tensor of the Milky Way from astrometric data. Our approach…
Linear operator theory of phase mixing
Keir Darling, Lawrence M. Widrow
We study solutions of the collisionless Boltzmann equation (CBE) in a functional Koopman representation. This facilitates the use of linear spectral techniques characteristic of th…
The Formation of Bars and Warps in Rotating Halos
Robin Joshi, Lawrence M. Widrow
We investigate the effects of halo kinematics on the dynamics of stellar discs by simulating the evolution of isolated disc-halo systems from equilibrium initial conditions. Our ma…
Fuzzy Dark Matter Dynamics and the Quasiparticle Hypothesis
Boris Zupancic, Lawrence M. Widrow
Dark matter may be composed of ultra-light bosons whose de Broglie wavelength in galaxies is of order 1 kpc. The standard model for this fuzzy dark matter (FDM) is a complex scalar…