Design, testing, and construction of Henrietta: a new exoatmosphere spectrograph for Las Campanas Observatory

Jason E. Williams; Nicholas P. Konidaris; Gerrad Killion; Julia E. Brady; Christoph Birk; Tyson S. Hare; Daniel D. Kelson; Dave E. Rumph; Gwen C. Rudie; Andrew B. Newman; Johanna K. Teske

doi:10.1117/12.3019612

18 July 2024 Design, testing, and construction of Henrietta: a new exoatmosphere spectrograph for Las Campanas Observatory

Jason E. Williams, Nicholas P. Konidaris, Gerrad Killion, Julia E. Brady, Christoph Birk, Tyson S. Hare, Daniel D. Kelson, Dave E. Rumph, Gwen C. Rudie, Andrew B. Newman, Johanna K. Teske

Author Affiliations +

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130961L (2024) https://doi.org/10.1117/12.3019612
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

We report on the status of Henrietta, a new near-infrared low-resolution (R ∼ 200) spectrograph for the 1-meter Swope telescope at Las Campanas Observatory in Chile. Henrietta is uniquely designed to perform transmission spectroscopy of tens of exoplanet atmospheres per year across a wide bandpass and routinely reach the photon noise limit on a nightly basis. Henrietta is currently at Carnegie Observatories, where it is undergoing assembly and optical alignment, as well as spectrophotometric testing to identify Henrietta’s spectrophotometric noise floor. Upon finishing assembly and testing in Summer 2024, Henrietta will be shipped to Las Campanas Observatory where it will begin commissioning. In this talk, I will describe Henrietta’s science mission, its overall design, the results of current testing, its goals for commissioning and future opportunities for collaboration.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jason E. Williams, Nicholas P. Konidaris, Gerrad Killion, Julia E. Brady, Christoph Birk, Tyson S. Hare, Daniel D. Kelson, Dave E. Rumph, Gwen C. Rudie, Andrew B. Newman, and Johanna K. Teske "Design, testing, and construction of Henrietta: a new exoatmosphere spectrograph for Las Campanas Observatory", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 130961L (18 July 2024); https://doi.org/10.1117/12.3019612

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