Publications (29)
Dimensionally Reduced Waveforms for Spin-Induced Quadrupole Searches
Horng Sheng Chia, Thomas D. P. Edwards, Richard N. George +5
We present highly accurate, dimensionally-reduced gravitational waveforms for binary inspirals whose components have large spin-induced quadrupole moments. The spin-induced quadrup…
Disks, spikes, and clouds: distinguishing environmental effects on BBH gravitational waveforms
Philippa S. Cole, Gianfranco Bertone, Adam Coogan +5
Future gravitational wave interferometers such as LISA, Taiji, DECIGO, and TianQin, will enable precision studies of the environment surrounding black holes. In this paper, we stud…
One never walks alone: the effect of the perturber population on subhalo measurements in strong gravitational lenses
Adam Coogan, Noemi Anau Montel, Konstantin Karchev +3
Analyses of extended arcs in strong gravitational lensing images to date have constrained the properties of dark matter by measuring the parameters of one or two individual subhalo…
Strong-Lensing Source Reconstruction with Denoising Diffusion Restoration Models
Konstantin Karchev, Noemi Anau Montel, Adam Coogan +1
Analysis of galaxy--galaxy strong lensing systems is strongly dependent on any prior assumptions made about the appearance of the source. Here we present a method of imposing a dat…
Time Delay Cosmography with a Neural Ratio Estimator
Ãve Campeau-Poirier, Laurence Perreault-Levasseur, Adam Coogan +1
We explore the use of a Neural Ratio Estimator (NRE) to determine the Hubble constant () in the context of time delay cosmography. Assuming a Singular Isothermal Ellipsoid (SI…
Antihelium from Dark Matter
Eric Carlson, Adam Coogan, Tim Linden +3
Cosmic-ray anti-nuclei provide a promising discovery channel for the indirect detection of particle dark matter. Hadron showers produced by the pair-annihilation or decay of Galact…