Design of the spectroscopic ultraviolet multi-object observatory (SUMO) prototype for deployment on the INFUSE sounding rocket

Grace Halferty; Dmitry Vorobiev; Brian Fleming; Dana Chafetz; Jack Williams

doi:10.1117/12.2676544

5 October 2023 Design of the spectroscopic ultraviolet multi-object observatory (SUMO) prototype for deployment on the INFUSE sounding rocket

Grace Halferty, Dmitry Vorobiev, Brian Fleming, Dana Chafetz, Jack Williams

Author Affiliations +

Proceedings Volume 12678, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXIII; 126780B (2023) https://doi.org/10.1117/12.2676544
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

We present the design of the Spectroscopic Ultraviolet Multi-object Observatory (SUMO) prototype and our plan to deploy this instrument on the INFUSE sounding rocket as an independent fly-along instrument. The SUMO prototype is part of the technology maturation program of SUMO - a mission concept designed for a future small satellite platform. SUMO is designed for astrophysics research in the Far-Ultraviolet (FUV) and Near-Ultraviolet (NUV) regimes encapsulating a wide range of programs, including efforts to understand the processes of star formation and galaxy evolution. Since the last major UV NASA missions, FUSE and GALEX, NASA has invested significantly into technology development for the UV bandpass. As a result, high reflectance mirror coatings and state-of-the-art detectors are now available. These technologies, along with the developed optical design, allow SUMO to achieve effective areas that are comparable to those achieved by FUSE and GALEX, at a fraction of the size and cost. The SUMO prototype consists of an 8 cm Cassegrain telescope and a Digital Micromirror Device (DMD)-based Multi-Object Spectrometer (MOS), with parallel imaging and spectroscopic channels. As part of this work, we are also developing a custom DMD controller, which is suitable for operation in the space environment. Given that current DMD-based spectrographs have been solely ground-based, this will be the first time a DMD-based instrument is deployed in space. Because the SUMO prototype will be deployed as a secondary payload, the spectrograph is also designed for completely autonomous operation. The SUMO prototype is tentatively scheduled for flight in 2025.

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Grace Halferty, Dmitry Vorobiev, Brian Fleming, Dana Chafetz, and Jack Williams "Design of the spectroscopic ultraviolet multi-object observatory (SUMO) prototype for deployment on the INFUSE sounding rocket", Proc. SPIE 12678, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXIII, 126780B (5 October 2023); https://doi.org/10.1117/12.2676544

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