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The Nancy Grace Roman Space Telescope Coronagraph Instrument (CGI) technology demonstration

Kasdin, N. Jeremy and Bailey, Vanessa P. and Mennesson, Bertrand and Zellem, Robert T. and Ygouf, Marie and Rhodes, Jason and Luchik, Thomas and Zhao, Feng and Riggs, A. J. Eldorado and Seo, Byoung-Joon and Krist, John and Kern, Brian and Tang, Hong and Nemati, Bijan and Groff, Tyler D. and Zimmerman, Neil and Macintosh, Bruce and Turnbull, Margaret and Debes, John and Douglas, Ewan S. and Lupu, Roxana E. (2020) The Nancy Grace Roman Space Telescope Coronagraph Instrument (CGI) technology demonstration. In: Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave. Proceedings of SPIE. No.11443. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 114431U. ISBN 9781510636736.

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The Coronagraph Instrument (CGI) on the Nancy Grace Roman Space Telescope will demonstrate the highcontrast technology necessary for visible-light exoplanet imaging and spectroscopy from space via direct imaging of Jupiter-size planets and debris disks. This in-space experience is a critical step toward future, larger missions targeted at direct imaging of Earth-like planets in the habitable zones of nearby stars. This paper presents an overview of the current instrument design and requirements, highlighting the critical hardware, algorithms, and operations being demonstrated. We also describe several exoplanet and circumstellar disk science cases enabled by these capabilities. A competitively selected Community Participation Program team will be an integral part of the technology demonstration and could perform additional CGI observations beyond the initial tech demo if the instrument performance warrants it.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Bailey, Vanessa P.0000-0002-5407-2806
Mennesson, Bertrand0000-0003-4205-4800
Zellem, Robert T.0000-0001-7547-0398
Ygouf, Marie0000-0001-7591-2731
Rhodes, Jason0000-0002-4485-8549
Riggs, A. J. Eldorado0000-0002-0863-6228
Groff, Tyler D.0000-0001-5978-3247
Zimmerman, Neil0000-0001-5484-1516
Macintosh, Bruce0000-0003-1212-7538
Turnbull, Margaret0000-0002-0569-1643
Debes, John0000-0002-1783-8817
Additional Information:© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE). Part of the work described here was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. Copyright 2020. All rights reserved. Work also supported by a grant from NASA Goddard Space Flight Center, Award #NNG16PJ29C.
Funding AgencyGrant Number
Subject Keywords:High-contrast imaging, Coronagraphy, Roman, CGI
Series Name:Proceedings of SPIE
Issue or Number:11443
Record Number:CaltechAUTHORS:20210106-104657504
Persistent URL:
Official Citation:N. Jeremy Kasdin, Vanessa P. Bailey, Bertrand Mennesson, Robert T. Zellem, Marie Ygouf, Jason Rhodes, Thomas Luchik, Feng Zhao, A. J. Eldorado Riggs, Byoung-Joon Seo, John Krist, Brian Kern, Hong Tang, Bijan Nemati, Tyler D. Groff, Neil Zimmerman, Bruce Macintosh, Margaret Turnbull, John Debes, Ewan S. Douglas, and Roxana E. Lupu "The Nancy Grace Roman Space Telescope Coronagraph Instrument (CGI) technology demonstration", Proc. SPIE 11443, Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave, 114431U (15 December 2020);
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107343
Deposited By: Tony Diaz
Deposited On:06 Jan 2021 19:03
Last Modified:16 Nov 2021 19:01

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