Kelly, Nagam, and Border Accepted to Roman Cycle 1

The Roman Space Telescope's wide field, high resolution, and sensitivity will make it exceptionally effective at identifying strong gravitational lenses, with simulations forecasting over 100,000 galaxy-scale lenses detectable, enabling constraints on the Hubble constant, SNe Ia cosmology, dark-matter substructures, and spectroscopy of individual stars magnified by factors of many thousands. This proposal will assemble a public, searchable catalog of galaxy-galaxy and group-scale lenses using machine learning to identify and characterize them, alongside a real-time broker ingesting transient alerts from Roman RAPID PIT and Rubin to share candidate lensed events.

Image credit: NASA, ESA, CSA, STScI, B. Frye (University of Arizona), R. Windhorst (Arizona State University), S. Cohen (Arizona State University), J. D’Silva (University of Western Australia, Perth), A. Koekemoer (Space Telescope Science Institute), J. Summers (Arizona State University).