Design and testing of a low-resolution NIR spectrograph for the EXoplanet Climate Infrared TElescope

Bernard, Lee, Jensen, Logan, Gamaunt, John, Butler, Nathaniel, Bocchieri, Andrea, Changeat, Quentin, D'Alessandro, Azzurra, Edwards, Billy, Gong, Qian, Hartley, John, Helson, Kyle, Kelly, Daniel, Klangboonkrong, Kanchita, Kleyheeg, Annalies, Lewis, Nikole, Li, Steven, Line, Michael, Maher, Stephen, McClelland, Ryan, Miko, Laddawan, Mugnai, Lorenzo, Nagler, Peter, Netterfield, Barth, Parmentier, Vivien, Pascale, Enzo, Patience, Jennifer, Rehm, Tim, Romualdez, Javier, Sarkar, Subhajit, Scowen, Paul, Tucker, Gregory, Waczynski, Augustyn, Waldman, Ingo, Evans, Christopher J., Bryant, Julia J. and Motohara, Kentaro 2022. Design and testing of a low-resolution NIR spectrograph for the EXoplanet Climate Infrared TElescope. Presented at: SPIE Astronomical Telescopes + Instrumentation, Montréal, Québec, Canada, 17-22 July 2022. Proceedings of SPIE. , vol.12184 Society of Photo-optical Instrumentation Engineers, 10.1117/12.2629717

Full text not available from this repository.

Abstract

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 µm and 2.5-4.0 µm 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.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Publisher:	Society of Photo-optical Instrumentation Engineers
ISSN:	0277-786X
Last Modified:	02 Dec 2022 12:30
URI:	https://orca.cardiff.ac.uk/id/eprint/154612

Actions (repository staff only)

Edit Item