DESHIMA 2.0: Rapid redshift surveys and multi-line spectroscopy of dusty galaxies

Abstract

We present a feasibility study for the high-redshift galaxy part of the Science Verification Campaign with the 220-440 GHz DESHIMA 2.0 integrated superconducting spectrometer on the ASTE telescope. The first version of the DESHIMA 2.0 chip has been recently manufactured and tested in the lab. Based on these realistic performance measurements, we evaluate potential target samples and prospects for detecting the [CII] and CO emission lines. The planned observations comprise two distinct, but complementary objectives: (1) acquiring spectroscopic redshifts for dusty galaxies selected in far-infrared/mm-wave continuum surveys; (2) multi-line observations to infer physical conditions in dusty galaxies.

arXiv commentExpanded version of the article for the conference proceedings for the 9th International Workshop on Low Temperature Detectors (submitted to JLTP, 1st November 2021). Added minor corrections and an extra panel for Fig. 2 (2021/11/2). Updated Figure 3 (2022/1/13)

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Cited by in corpus (1)

• DESHIMA 2.0: development of an integrated superconducting spectrometer for science-grade astronomical observations