Others Participating: Ariel Goobar & Daniel Goldstein
Abstract: Strongly lensed Type Ia supernovae (SNe Ia) are rare systems that probe the mass profiles of elliptical galaxies at sub-kiloparsec scales. As cosmological probes, they provide a novel method of measuring H0, Omega_m, and w via time delays, and their magnifications enable studies of supernova evolution to high redshift (z <= 1:8 in ZTF). Studying them can reveal clues about the nature of dark energy, resolve tension between the local and CMB values of H0, and constrain feedback mechanisms that regulate galaxy evolution.