Large format imaging spectrograph for the Large Submillimeter Telescope (LST)

Kotaro Kohno; Ryohei Kawabe; Yoichi Tamura; Akira Endo; Jochem J. A. Baselmans; Kenichi Karatsu; Akio K. Inoue; Kana Moriwaki; Natsuki H. Hayatsu; Naoki Yoshida; Yuki Yoshimura; Bunyo Hatsukade; Hideki Umehata; Tai Oshima; Tatsuya Takekoshi; Akio Taniguchi; Pamela D. Klaassen; Tony Mroczkowski; Claudia Cicone; Frank Bertoldi; Helmut Dannerbauer; Tomoka Tosaki

doi:10.1117/12.2561238

13 December 2020 Large format imaging spectrograph for the Large Submillimeter Telescope (LST)

Kotaro Kohno, Ryohei Kawabe, Yoichi Tamura, Akira Endo, Jochem J. A. Baselmans, Kenichi Karatsu, Akio K. Inoue, Kana Moriwaki, Natsuki H. Hayatsu, Naoki Yoshida, Yuki Yoshimura, Bunyo Hatsukade, Hideki Umehata, Tai Oshima, Tatsuya Takekoshi, Akio Taniguchi, Pamela D. Klaassen, Tony Mroczkowski, Claudia Cicone, Frank Bertoldi, Helmut Dannerbauer, Tomoka Tosaki

Author Affiliations +

Proceedings Volume 11453, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X; 114530N (2020) https://doi.org/10.1117/12.2561238
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Abstract

We present a conceptual study of a large format imaging spectrograph for next-generation large (50-m class) single-dish telescopes, i.e., the Large Submillimeter Telescope (LST) and Atacama Large Aperture Submillimeter Telescope (AtLAST). Recent discoveries of high-redshift star-forming galaxies at z=8-9 and candidate quiescent galaxies at z~6 indicate the onset of earliest star formation just a few 100 million years after the Big Bang (i.e., z = 12 - 15), and LST/AtLAST will provide a unique pathway to uncover spectroscopically-identified ``first forming galaxies’’ in the pre-reionization era, once it will be equipped with a large format imaging spectrograph. We describe the preliminary of 3-band, medium resolution (R=2000) imaging spectrograph with ~1.5 M detectors in total based on the KATANA concept (Karatsu et al.~2019), which exploits technologies of the integrated superconducting spectrometer (ISS) and a large-format imaging array like A-MKID.

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Kotaro Kohno, Ryohei Kawabe, Yoichi Tamura, Akira Endo, Jochem J. A. Baselmans, Kenichi Karatsu, Akio K. Inoue, Kana Moriwaki, Natsuki H. Hayatsu, Naoki Yoshida, Yuki Yoshimura, Bunyo Hatsukade, Hideki Umehata, Tai Oshima, Tatsuya Takekoshi, Akio Taniguchi, Pamela D. Klaassen, Tony Mroczkowski, Claudia Cicone, Frank Bertoldi, Helmut Dannerbauer, and Tomoka Tosaki "Large format imaging spectrograph for the Large Submillimeter Telescope (LST)", Proc. SPIE 11453, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X, 114530N (13 December 2020); https://doi.org/10.1117/12.2561238

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