Paper 14145-179
Paper 14145-179
Simulation tools for realistic high-order wavefront correction with the Roman Coronagraph
7 July 2026 • 17:30 - 19:00 CEST | Room B4-M3
Abstract
NASA's Roman Space Telescope carries the Coronagraph Instrument to perform the first high-contrast imaging of exoplanets in space. The instrument’s only top-level requirement is to demonstrate a broadband dark zone. The Community Participation Program (CPP) is planning a range of scientific and engineering activities to perform afterward. To provide realistic simulations of Roman Coronagraph performance in these various modes, the CPP’s Hardware Working Group is developing the corgihowfsc software package. This repository is a wrapper combining several other repositories open-sourced by the Roman Coronagraph project and CPP: corgisim for producing realistic images, cgi-howfsc for performing and high-order wavefront sensing and control (HOWFSC), cgi-eetc for exposure time calculation, and cgi-coralign for performing optical calibrations. By using this collection of official modeling tools, the modeling results from the CPP will be the highest possible fidelity.
Presenter
Jet Propulsion Lab. (United States)
A J Eldorado Riggs is an optical engineer at NASA’s Jet Propulsion Laboratory. His research focuses on the high-contrast imaging of exoplanets, in particular, mask optimization and wavefront sensing and control for the Coronagraph Instrument on the Nancy Grace Roman Space Telescope. He received his BS degree in physics and mechanical engineering from Yale University in 2011 and his PhD in mechanical and aerospace engineering from Princeton University in 2016.