Design and testing of a low-resolution NIR spectrograph for the EXoplanet Climate Infrared TElescope
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Documents
- 1218429
Final published version, 6.6 MB, PDF document
The EXoplanet Climate Infrared TElescope (EXCITE) experiment is a balloon-borne, purpose-designed mission to measure spectroscopic phase curves of short-period extrasolar giant planets (EGPs, or "hot Jupiters"). Here, we present EXCITE's principal science instrument: a high-throughput, single-object spectrograph operating in the 0.8-2.5 mu m and 2.5-4.0 mu m bands with R >= 50. Our compact design achieves diffraction-limited, on-axis performance with just three powered optics: two off-axis parabolic mirrors and a CaF2 prism. We discuss the optical and mechanical design, the expected optical performance of the spectrograph, and summarize the tolerances needed to achieve that performance. We also discuss plans for establishing alignment of the optics and verifying the optical performance.
Original language | English |
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Article number | 1218429 |
Journal | Proceedings of SPIE |
Volume | 12184 |
Number of pages | 10 |
ISSN | 0277-786X |
DOIs | |
Publication status | Published - 2022 |
Event | Conference on Ground-Based and Airborne Instrumentation for Astronomy IX - Montreal, Canada Duration: 17 Jul 2022 → 22 Jul 2022 |
Conference
Conference | Conference on Ground-Based and Airborne Instrumentation for Astronomy IX |
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Country | Canada |
City | Montreal |
Period | 17/07/2022 → 22/07/2022 |
- Exoplanet spectroscopy, hot Jupiters, balloon-borne instrumentation, infrared instrumentation
Research areas
ID: 344424216