Paving the Way to Future Missions: the Roman Space Telescope Coronagraph Technology Demonstration
Paving the Way to Future Missions: the Roman Space Telescope Coronagraph Technology Demonstration
This document summarizes how far the Nancy Grace Roman Space Telescope Coronagraph Instrument (Roman CGI) will go toward demonstrating high-contrast imaging and spectroscopic requirements for potential future exoplanet direct imaging missions, illustrated by the HabEx and LUVOIR concepts. The assessment is made for two levels of assumed CGI performance: (i) current best estimate (CBE) as of August 2020, based on laboratory results and realistic end-to-end simulations with JPL-standard Model Uncertainty Factors (MUFs); (ii) CGI design specifications inherited from Phase B requirements. We find that the predicted performance (CBE) of many CGI subsystems compares favorably with the needs of future missions, despite providing more modest point source detection limits than future missions. This is essentially due to the challenging pupil of the Roman Space Telescope; this pupil pushes the coronagraph masks sensitivities to misalignments to be commensurate with future missions. In particular, CGI will demonstrate active low-order wavefront control and photon counting capabilities at levels of performance either higher than, or comparable to, the needs of future missions.
C. Stark、K. Stapelfeldt、N. Zimmerman、A. Roberge、B. S. Gaudi、T. Luchik、I. Poberezhskiy、J. McEnery、B. Mennesson、B. Kern、R. Juanola-Parramon、F. Shi、M. Turnbull、A. J. Riggs、R. Zellem、V. P. Bailey、B. Macintosh、E. Cady、J. Kasdin、J. Krist、J. Rhodes、F. Zhao、T. Meshkat、B. Nemati、D. Benford、L. Pueyo、S. Martin、A. Mandell、M. Ygouf、E. Douglas、G. Ruane、B. Crill、J. Kruk、M. Bolcar、N. Siegler、D. Mawet
Space Telescope Science InstituteJet Propulsion Laboratory, California Institute of TechnologyNASA Goddard Space Flight CenterNASA Goddard Space Flight CenterOhio State UniversityJet Propulsion Laboratory, California Institute of TechnologyJet Propulsion Laboratory, California Institute of TechnologyNASA Goddard Space Flight CenterJet Propulsion Laboratory, California Institute of TechnologyJet Propulsion Laboratory, California Institute of TechnologyNASA Goddard Space Flight CenterJet Propulsion Laboratory, California Institute of TechnologySETI InstituteJet Propulsion Laboratory, California Institute of TechnologyJet Propulsion Laboratory, California Institute of TechnologyJet Propulsion Laboratory, California Institute of TechnologyStanford UniversityJet Propulsion Laboratory, California Institute of TechnologyUniversity of San FranciscoJet Propulsion Laboratory, California Institute of TechnologyJet Propulsion Laboratory, California Institute of TechnologyJet Propulsion Laboratory, California Institute of TechnologyCaltech IPACThe University of Alabama in HuntsvilleNASA HeadquartersSpace Telescope Science InstituteJet Propulsion Laboratory, California Institute of TechnologyNASA Goddard Space Flight CenterSETI InstituteUniversity of ArizonaJet Propulsion Laboratory, California Institute of TechnologyJet Propulsion Laboratory, California Institute of TechnologyNASA Goddard Space Flight CenterNASA Goddard Space Flight CenterJet Propulsion Laboratory, California Institute of TechnologyCalifornia Institute of Technology
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C. Stark,K. Stapelfeldt,N. Zimmerman,A. Roberge,B. S. Gaudi,T. Luchik,I. Poberezhskiy,J. McEnery,B. Mennesson,B. Kern,R. Juanola-Parramon,F. Shi,M. Turnbull,A. J. Riggs,R. Zellem,V. P. Bailey,B. Macintosh,E. Cady,J. Kasdin,J. Krist,J. Rhodes,F. Zhao,T. Meshkat,B. Nemati,D. Benford,L. Pueyo,S. Martin,A. Mandell,M. Ygouf,E. Douglas,G. Ruane,B. Crill,J. Kruk,M. Bolcar,N. Siegler,D. Mawet.Paving the Way to Future Missions: the Roman Space Telescope Coronagraph Technology Demonstration[EB/OL].(2020-08-12)[2025-09-11].https://arxiv.org/abs/2008.05624.点此复制
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