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astro-ph.IM2024
Caustics: A Python Package for Accelerated Strong Gravitational Lensing Simulations
Connor Stone, Alexandre Adam, Adam Coogan +9
Gravitational lensing is the deflection of light rays due to the gravity of intervening masses. This phenomenon is observed in a variety of scales and configurations, involving any…
astro-ph.IM2023★ 2 cited
Time Delay Cosmography with a Neural Ratio Estimator
Ève 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…