The Roman Coronagraph Community Participation Program: corgisim - a simulation suite for the Nancy Grace Roman Space Telescope Coronagraph Instrument
Abstract
NASA's Roman Space Telescope will feature a pathfinder Coronagraph Instrument to demonstrate advanced high-contrast imaging from space, paving the way for future missions like the Habitable Worlds Observatory. The Coronagraph Instrument could obtain imaging, polarimetry and spectroscopy of Jupiter analogs in reflected visible light for the first time. We present the development of an open-source simulation package ``corgisim'' as part of the Roman Coronagraph Community Participate Program. Built on established optical propagation libraries including PROPER and CGISim, corgisim provides a user-friendly, publicly available Python framework for end-to-end simulations of the Coronagraph Instrument observations. The package produces high-fidelity, format-compliant data for pre-launch calibration, pipeline testing, and community applications such as target selection and observation planning. We will give an overview of corgisim's infrastructure, functionalities, and current implementation across planned imaging, polarimetry, and spectroscopy modes, including the ability to simulate host stars, injected companions, and extended disks. We will also highlight suitable applications of corgisim and provide guidance on how users can access and employ the software.
Versions
Related
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BibTeX
@misc{zhang2026roman,
title = {{The Roman Coronagraph Community Participation Program: corgisim - a simulation suite for the Nancy Grace Roman Space Telescope Coronagraph Instrument}},
author = {Jingwen Zhang and Sophie Noiret and Maxwell A. Millar Blanchaer and Jason Wang and Alexis Lau and Neil Zimmerman and Jessica Gersh-Range and Eric Shen and Kevin Ludwick and Taichi Uyama and Chen Xie and Vanessa P. Bailey and John Krist and Elodie Choquet and Julien Girard and Alexis Bidot and Arthur Vigan},
howpublished = {arXiv},
year = {2026},
month = aug,
doi = {10.48550/arxiv.2608.17257},
eprint = {2608.17257},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2608.17257},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - The Roman Coronagraph Community Participation Program: corgisim - a simulation suite for the Nancy Grace Roman Space Telescope Coronagraph Instrument
AU - Jingwen Zhang
AU - Sophie Noiret
AU - Maxwell A. Millar Blanchaer
AU - Jason Wang
AU - Alexis Lau
AU - Neil Zimmerman
AU - Jessica Gersh-Range
AU - Eric Shen
AU - Kevin Ludwick
AU - Taichi Uyama
AU - Chen Xie
AU - Vanessa P. Bailey
AU - John Krist
AU - Elodie Choquet
AU - Julien Girard
AU - Alexis Bidot
AU - Arthur Vigan
PY - 2026
DA - 2026/08/18
PB - arXiv
DO - 10.48550/arxiv.2608.17257
UR - https://arxiv.org/abs/2608.17257
AB - NASA's Roman Space Telescope will feature a pathfinder Coronagraph Instrument to demonstrate advanced high-contrast imaging from space, paving the way for future missions like the Habitable Worlds Observatory. The Coronagraph Instrument could obtain imaging, polarimetry and spectroscopy of Jupiter analogs in reflected visible light for the first time. We present the development of an open-source simulation package ``corgisim'' as part of the Roman Coronagraph Community Participate Program. Built on established optical propagation libraries including PROPER and CGISim, corgisim provides a user-friendly, publicly available Python framework for end-to-end simulations of the Coronagraph Instrument observations. The package produces high-fidelity, format-compliant data for pre-launch calibration, pipeline testing, and community applications such as target selection and observation planning. We will give an overview of corgisim's infrastructure, functionalities, and current implementation across planned imaging, polarimetry, and spectroscopy modes, including the ability to simulate host stars, injected companions, and extended disks. We will also highlight suitable applications of corgisim and provide guidance on how users can access and employ the software.
ER -