Extremely high-contrast, high spectral resolution spectrometer REACH for the Subaru Telescope

T. Kotani; H. Kawahara; M. Ishizuka; N. Jovanovic; S. Vievard; J. Lozi; A. Sahoo; O. Guyon; K. Yoneta; M. Tamura

doi:10.1117/12.2561755

21 December 2020 Extremely high-contrast, high spectral resolution spectrometer REACH for the Subaru Telescope

T. Kotani, H. Kawahara, M. Ishizuka, N. Jovanovic, S. Vievard, J. Lozi, A. Sahoo, O. Guyon, K. Yoneta, M. Tamura

Proceedings Volume 11448, Adaptive Optics Systems VII; 1144878 (2020) https://doi.org/10.1117/12.2561755
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

We will present a new instrument, REACH (Rigorous Exoplanetary Atmosphere Characterization with High dispersion coronography) to realize very high spectral resolution, over R=100,000 at extreme contrast by combining the high-resolution spectrograph InfraRed Doppler (IRD) and the extreme adaptive optics instrument, SCExAO at the Subaru Telescope. REACH consists of mini-IFU like 7 single-mode fiber bundle located at a focus of SCExAO, a high-speed photometric monitoring camera, and a beam switching and feed system from the fiber bundle to IRD’s 2 single-mode fibers. We will provide an overview of the instrument and present the recent results from on-sky tests.

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T. Kotani, H. Kawahara, M. Ishizuka, N. Jovanovic, S. Vievard, J. Lozi, A. Sahoo, O. Guyon, K. Yoneta, and M. Tamura "Extremely high-contrast, high spectral resolution spectrometer REACH for the Subaru Telescope", Proc. SPIE 11448, Adaptive Optics Systems VII, 1144878 (21 December 2020); https://doi.org/10.1117/12.2561755

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