Enabling binary stars high-contrast imaging on the Roman Space Telescope coronagraph instrument

Eduardo A. Bendek; Ruslan Belikov; Dan Sirbu; Garreth Ruane; A. J. Eldorado Riggs; Bala Balasubramanian; Camilo Mejia Prada; Eugene Pluzhnyk

doi:10.1117/12.2594992

1 September 2021 Enabling binary stars high-contrast imaging on the Roman Space Telescope coronagraph instrument

Eduardo A. Bendek, Ruslan Belikov, Dan Sirbu, Garreth Ruane, A. J. Eldorado Riggs, Bala Balasubramanian, Camilo Mejia Prada, Eugene Pluzhnyk

Author Affiliations +

Proceedings Volume 11823, Techniques and Instrumentation for Detection of Exoplanets X; 1182311 (2021) https://doi.org/10.1117/12.2594992
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

The Multi-Star Wavefront Control (MSWC) algorithm can be used to suppress scattered light from an off-axis companion star, enabling high-contrast imaging in binary star systems. Applying this technique to the Nancy Grace Roman Space Telescope (Roman, formerly WFIRST) Coronagraph Instrument (CGI) could significantly increase the number of possible targets for the mission. Some of those targets are beyond the deformable mirror spatial Nyquist control zone, and therefore super-Nyquist MSWC would be necessary. In this paper, we present a feasibility analysis of implementing MSWC on Roman CGI.

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Citation Download Citation

Eduardo A. Bendek, Ruslan Belikov, Dan Sirbu, Garreth Ruane, A. J. Eldorado Riggs, Bala Balasubramanian, Camilo Mejia Prada, and Eugene Pluzhnyk "Enabling binary stars high-contrast imaging on the Roman Space Telescope coronagraph instrument", Proc. SPIE 11823, Techniques and Instrumentation for Detection of Exoplanets X, 1182311 (1 September 2021); https://doi.org/10.1117/12.2594992

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