FINER: Far-Infrared Nebular Emission Receiver for the large millimeter telescope
Unveiling the emergence and prevalence of massive/bright galaxies during the epoch of reionization and beyond, within the first 600 million years of the Universe, stands as a pivotal pursuit in astronomy. Remarkable progress has been made by <i>JWST</i> in identifying an immense population of bright galaxies, which hints at exceptionally efficient galaxy assembly processes. However, the underlying physical mechanisms propelling their rapid growth remain unclear. With this in mind, millimeter and submillimeter-wave spectroscopic observations of redshifted far-infrared spectral lines, particularly the [Oiii] 88 μm and [Cii] 158 μm lines, offers a crucial pathway to address this fundamental query. <br/><br/> To this end, we develop a dual-polarization sideband-separating superconductor-insulator-superconductor (SIS) mixer receiver, FINER, for the Large Millimeter Telescope (LMT) situated in Mexico. Harnessing advancements from ALMA’s wideband sensitivity upgrade (WSU) technology, FINER covers radio frequencies spanning 120–360 GHz, delivering an instantaneous intermediate frequency (IF) of 3–21 GHz per sideband per polarization, which is followed by a set of 10.24 GHz-wide digital spectrometers. At 40% of ALMA’s light-collecting area, the LMT’s similar atmospheric transmittance and FINER’s 5 times wider bandwidth compared to ALMA culminate in an unparalleled spectral scanning capability in the northern hemisphere, paving the way for finer spectral-resolution detection of distant galaxies.
Authors
- Ryohei Kawabe (ORCID: https://orcid.org/0000-0002-8049-7525)
- Akiyoshi Tsujita (ORCID: https://orcid.org/0000-0002-0498-5041)
- Wenlei Shan (ORCID: https://orcid.org/0000-0003-4035-2513)
- Bunyo Hatsukade (ORCID: https://orcid.org/0000-0001-6469-8725)
- Yuki Kimura (ORCID: https://orcid.org/0000-0003-2191-8577)
- Yoichi Tamura (ORCID: https://orcid.org/0000-0003-4807-8117)
- Teppei Yonetsu (ORCID: https://orcid.org/0000-0003-2386-7427)
- Taku Nakajima (ORCID: https://orcid.org/0000-0002-8467-5691)
- Kunihiko Tanaka (ORCID: https://orcid.org/0000-0001-8153-1986)
- Tatsuya Takekoshi (ORCID: https://orcid.org/0000-0002-4124-797X)
- Hideki Umehata
- Takahiro Iino (ORCID: https://orcid.org/0000-0003-3591-418X)
- Min S. Yun (ORCID: https://orcid.org/0000-0001-7095-7543)
- Yuichi Harikane (ORCID: https://orcid.org/0000-0002-6047-430X)
- Takeshi Sakai (ORCID: https://orcid.org/0000-0003-4521-7492)
- Yuichi Matsuda (ORCID: https://orcid.org/0000-0003-1747-2891)
- Ken Mawatari (ORCID: https://orcid.org/0000-0003-4985-0201)
- F. P. Schloerb
- Takuya Hashimoto (ORCID: https://orcid.org/0000-0002-0898-4038)
- Takafumi Kojima (ORCID: https://orcid.org/0000-0001-7949-6528)
- Yoshinobu Fudamoto (ORCID: https://orcid.org/0000-0001-7440-8832)
- Shunichi Nakatsubo
- Hideo Sagawa (ORCID: https://orcid.org/0000-0003-2064-2863)
- Hiroyuki Maezawa (ORCID: https://orcid.org/0000-0001-6719-4581)
- Shigeru Takahashi (ORCID: https://orcid.org/0009-0009-8793-9355)
- Akio Taniguchi (ORCID: https://orcid.org/0000-0002-9695-6183)
- Akio Inoue (ORCID: https://orcid.org/0000-0002-7779-8677)
- Kazuyuki Fujita
- Kotomi Taniguchi (ORCID: https://orcid.org/0000-0003-4402-6475)
- Masato Hagimoto (ORCID: https://orcid.org/0000-0001-8083-5814)
- Kotaro Kohno (ORCID: https://orcid.org/0000-0002-4052-2394)
- Tom J. L. C. Bakx
- Norika Okauchi
- Airi Tetsuka
- Haoran Kang (ORCID: https://orcid.org/0000-0002-6570-5154)
- Tai Oshima (ORCID: https://orcid.org/0009-0005-5915-1035)
- David H. Hughes
Institutions
- Waseda University (JP)
- Chiba University (JP)
- Keio University (JP)
- University of Electro-Communications (JP)
- National Astronomical Observatory of Japan (JP)
- Nagoya University (JP)
- Chalmers University of Technology (SE)
- The University of Tokyo (JP)
- Kitami Institute of Technology (JP)
Publication Details
- Published
- 2024-08-16
- DOI
- https://doi.org/10.1117/12.3017788
- Citations
- 3
- Primary Topic
- Superconducting and THz Device Technology
- Type
- article
- Field-Weighted Citation Impact
- 0.99