Flight mask designs of the Roman Space Telescope coronagraph instrument

A. J. Eldorado Riggs; Vanessa Bailey; Dwight C. Moody; Erkin Sidick; Kunjithapatham Balasubramanian; Douglas M. Moore; Daniel W. Wilson; Garreth Ruane; Dan Sirbu; Jessica Gersh-Range; John Trauger; Bertrand Mennesson; Nicholas Siegler; Eduardo Bendek; Tyler D. Groff; Neil T. Zimmerman; John Debes; Scott A. Basinger; N. Jeremy Kasdin

doi:10.1117/12.2598599

1 September 2021 Flight mask designs of the Roman Space Telescope coronagraph instrument

A. J. Eldorado Riggs, Vanessa Bailey, Dwight C. Moody, Erkin Sidick, Kunjithapatham Balasubramanian, Douglas M. Moore, Daniel W. Wilson, Garreth Ruane, Dan Sirbu, Jessica Gersh-Range, John Trauger, Bertrand Mennesson, Nicholas Siegler, Eduardo Bendek, Tyler D. Groff, Neil T. Zimmerman, John Debes, Scott A. Basinger, N. Jeremy Kasdin

Author Affiliations +

Proceedings Volume 11823, Techniques and Instrumentation for Detection of Exoplanets X; 118231Y (2021) https://doi.org/10.1117/12.2598599
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Conference Poster

Abstract

The Nancy Grace Roman Space Telescope, planned to launch in the mid-2020s, will be the first space-based observatory to demonstrate active wavefront correction at high contrast with its Coronagraph Instrument. As a technology demonstrator, the instrument’s main purpose is to mature the various technologies needed by future flagship mission concepts that aim to image and characterize Earth-like exoplanets. These technologies include two high-actuator-count deformable mirrors (DMs), photon-counting detectors, two complementary wavefront sensing and control loops, and two different coronagraph types. Here we describe the complete set of flight mask designs for the Roman Coronagraph. Multiple mask configurations are required to overcome the challenging pupil obscurations and enable the desired types of imaging, spectroscopy, and polarimetry. In designing each mask configuration, we considered many performance metrics, including spectral bandwidth, field of view, contrast, core throughput, encircled energy, deformable mirror surface height, and low-order aberration sensitivity

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A. J. Eldorado Riggs, Vanessa Bailey, Dwight C. Moody, Erkin Sidick, Kunjithapatham Balasubramanian, Douglas M. Moore, Daniel W. Wilson, Garreth Ruane, Dan Sirbu, Jessica Gersh-Range, John Trauger, Bertrand Mennesson, Nicholas Siegler, Eduardo Bendek, Tyler D. Groff, Neil T. Zimmerman, John Debes, Scott A. Basinger, and N. Jeremy Kasdin "Flight mask designs of the Roman Space Telescope coronagraph instrument", Proc. SPIE 11823, Techniques and Instrumentation for Detection of Exoplanets X, 118231Y (1 September 2021); https://doi.org/10.1117/12.2598599

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