Large format imaging spectrograph for the Large Submillimeter Telescope (LST)
| Autor: | Kohno, K., Kawabe, R., Tamura, Y., Endo, A., Baselmans, J. J. A., Karatsu, K., Inoue, A. K., Moriwaki, K., Hayatsu, N. H., Yoshida, N., Yoshimura, Y., Hatsukade, B., Umehata, H., Oshima, T., Takekoshi, T., Taniguchi, A., Klaassen, P. D., Mroczkowski, T., Cicone, C., Bertoldi, F., Dannerbauer, H., Tosaki, T. |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Proceedings Volume 11453, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X; 114530N (2020) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1117/12.2561238 |
| Popis: | We present a conceptual study of a large format imaging spectrograph for the Large Submillimeter Telescope (LST) and the Atacama Large Aperture Submillimeter Telescope (AtLAST). Recent observations of high-redshift galaxies 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 propose a 3-band (200, 255, and 350 GHz), medium resolution (R = 2,000) 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. A 1-deg2 drilling survey (3,500 hr) will capture a large number of [O III] 88 um (and [C II] 158 um) emitters at z = 8--9, and constrain [O III] luminosity functions at z > 12. Comment: Presented at SPIE Astronomical Telescopes + Instrumentation 2020. Full published paper and video available at http://dx.doi.org/10.1117/12.2561238 See also https://www.lstobservatory.org for the LST project |
| Databáze: | arXiv |
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