Hyperion: Far-UV cross dispersion spectroscope design

Heejoo Choi; Isaac Trumper; Yi-Ting Feng; Hyukmo Kang; Erika Hamden; Dae Wook Kim

doi:10.1117/12.2570489

20 August 2020 Hyperion: Far-UV cross dispersion spectroscope design

Heejoo Choi, Isaac Trumper, Yi-Ting Feng, Hyukmo Kang, Erika Hamden, Dae Wook Kim

Proceedings Volume 11487, Optical Manufacturing and Testing XIII; 114870W (2020) https://doi.org/10.1117/12.2570489
Event: SPIE Optical Engineering + Applications, 2020, Online Only

Abstract

Hyperion is a far-UV mission that investigates the birth clouds of stars using a 40 cm aperture telescope feeding an imaging long-slit spectrometer. The science requirements of the mission dictate that the spectrometer covers 140.5- 164.5 nm spectral range with resolution greater than 30,000. We employ smart and efficient design to create a longslit, cross dispersed, echelle spectrometer that utilizes a two-mirror freeform imaging optics. Echelle spectra for n = - 19, -18, and -17 over a 10 arcmin × 2.5 arcsec (length × width) FFOV are imaged onto the focal plane. We simulate the optical performance and the expected spectral efficiency.

Conference Presentation

Citation Download Citation

Heejoo Choi, Isaac Trumper, Yi-Ting Feng, Hyukmo Kang, Erika Hamden, and Dae Wook Kim "Hyperion: Far-UV cross dispersion spectroscope design", Proc. SPIE 11487, Optical Manufacturing and Testing XIII, 114870W (20 August 2020); https://doi.org/10.1117/12.2570489

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