Assembly, integration, and laboratory testing of the EXCITE spectrograph (Erratum)

Bernard, Lee, Gamaunt, Johnathan, Jensen, Logan, Bocchieri, Andrea, Butler, Nat, Changeat, Quentin, D'Alessandro, Azzurra, Edwards, Billy, Earley, Conor, Gong, Qian, Hartley, John, Helson, Kyle, Kelly, Daniel P., Klangboonkrong, Kanchita, Kleyheeg, Annalies, Lewis, Nikole, Li, Steven, Line, Michael, Maher, Stephen F., McClelland, Ryan, Miko, Laddawan R., Mugnai, Lorenzo V. ORCID: https://orcid.org/0000-0002-9007-9802, Nagler, Peter, Netterfield, C. Barth, Parmentier, Vivien, Pascale, Enzo ORCID: https://orcid.org/0000-0002-3242-8154, Patience, Jennifer, Rehm, Tim, Romualdez, Javier, Sarkar, Subhajit, Scowen, Paul, Tucker, Greg, Waczynski, Augustyn, Waldmann, Ingo P., Vernet, Joël R., Bryant, Julia J. and Motohara, Kentaro 2024. Assembly, integration, and laboratory testing of the EXCITE spectrograph (Erratum). Presented at: SPIE Astronomical Telescopes + Instrumentation, Yokohama, Japan, 18-20 June 2024. Proceedings Ground-based and Airborne Instrumentation for Astronomy X. , vol.13096 SPIE, p. 501. 10.1117/12.3056735

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Abstract

The EXoplanet Climate Infrared TElescope (EXCITE) is a near-infrared spectrograph (0.8-3.5 μm, R∼50) designed for measuring spectroscopic phase curves of transiting hot Jupiter-type exoplanets that operates off a high-altitude balloon platform. Phase curves produce a combination of phase curve and transit/eclipse spectroscopy, providing a wealth of information for characterizing exoplanet atmospheres. EXCITE will be a firstof- kind dedicated telescope uniquely able to observe a target nearly uninterrupted for tens of hours, enabling phase curve measurements, and complementing JWST. The spectrometer has two channels, a 0.8-2.5 μm band and a 2.5-3.5 μm band, providing a spectrum with a spectral resolution of R≥50. Two Off-Axis Parabolic (OAP) mirrors reimage the telescope focal plane to provide on-axis, diffraction-limited performance, wth a CaF2 prism providing dispersion. The spectrum is imaged with a single JWST flight spare Teledyne H2RG detector, providing Nyquist sampling of each channel. Here, we discuss the spectrograph’s mechanical design, acceptance testing, assembly, and cryostat integration.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Additional Information:	Publisher's Note: This paper, originally published on 30 July 2024, was replaced with a corrected/revised version on 8 November 2024. The original paper has been updated.
Publisher:	SPIE
Related URLs:	http://dx.doi.org/10.1117/12.3019286
Date of First Compliant Deposit:	10 December 2024
Date of Acceptance:	8 November 2024
Last Modified:	17 Jan 2025 11:51
URI:	https://orca.cardiff.ac.uk/id/eprint/174646

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