DESHIMA 2.0 on ASTE: commissioning and science verification of an ultra-wideband integrated superconducting spectrometer
We present the on-sky commissioning and science verification of DESHIMA 2.0: the first science-grade integrated superconducting spectrometer (ISS) for ultra-wideband mm-submm spectroscopy. With an instantaneous band coverage of 205-392 GHz at a spectral resolution of F/dF = 500, DESHIMA 2.0 will be applied to emission line surveys and redshift measurement of dusty star-forming galaxies, spectroscopic Sunyaev–Zeldovich effect observations of galaxy-clusters, and other new science cases that utilize its ultra-wide bandwidth. Compared to its predecessor (DESHIMA 1.0), DESHIMA 2.0’s superconducting filterbank chip with a x4 higher optical efficiency, x4 wider instantaneous bandwidth, x20 faster position switching on the sky, and a remotely-controlled optics alignment system. DESHIMA 2.0 is currently installed on the ASTE 10-m telescope at 4860 m altitude with excellent sky transmission, and is being commissioned for science operation. In the conference we will report the on-sky performance and latest results in the science-verification campaign at ASTE.
Authors
- Ryohei Kawabe (ORCID: https://orcid.org/0000-0002-8049-7525)
- Akiyoshi Tsujita (ORCID: https://orcid.org/0000-0002-0498-5041)
- Toshihiko Kobiki
- S. J. C. Yates (ORCID: https://orcid.org/0000-0002-8640-4596)
- Hiroki Akamatsu (ORCID: https://orcid.org/0000-0003-1949-7005)
- Yoichi Tamura (ORCID: https://orcid.org/0000-0003-4807-8117)
- Vignesh Murugesan (ORCID: https://orcid.org/0000-0002-3490-3828)
- Bruno T. Buijtendorp (ORCID: https://orcid.org/0000-0001-6088-6585)
- Micah Klettke
- Kazushige Ohtawara (ORCID: https://orcid.org/0000-0003-1944-9943)
- Alejandro Pascual Laguna (ORCID: https://orcid.org/0000-0001-7293-4150)
- Kuniaki Konishi (ORCID: https://orcid.org/0000-0003-2389-9787)
- Shahab O. Dabironezare (ORCID: https://orcid.org/0000-0002-9032-2227)
- Tatsuya Takekoshi (ORCID: https://orcid.org/0000-0002-4124-797X)
- Ryota Takaku (ORCID: https://orcid.org/0000-0001-8754-8594)
- Tetsu Kitayama (ORCID: https://orcid.org/0000-0002-9486-0356)
- Matus Rybak (ORCID: https://orcid.org/0000-0002-1383-0746)
- Tetsuhiro Minamidani (ORCID: https://orcid.org/0000-0001-9778-6692)
- Doreen Wernicke
- Akira Endo (ORCID: https://orcid.org/0000-0003-0379-2341)
- Takahiro Iino (ORCID: https://orcid.org/0000-0003-3591-418X)
- J. J. A. Baselmans (ORCID: https://orcid.org/0000-0002-3385-7305)
- Shaul Hanany (ORCID: https://orcid.org/0000-0002-8702-6291)
- T. Matsumura
- Hideki Umehata (ORCID: https://orcid.org/0000-0003-1937-0573)
- K. Karatsu (ORCID: https://orcid.org/0000-0003-4562-5584)
- Shunichi Nakatsubo
- P. van der Werf
- Sten Vollebregt (ORCID: https://orcid.org/0000-0001-6012-6180)
- Chihiro Imamura
- David J. Thoen (ORCID: https://orcid.org/0000-0002-5303-7312)
- Robert Huiting
- Akio Taniguchi (ORCID: https://orcid.org/0000-0002-9695-6183)
- Kazuyuki Fujita
- Masato Hagimoto (ORCID: https://orcid.org/0000-0001-8083-5814)
- Kotaro Kohno (ORCID: https://orcid.org/0000-0002-4052-2394)
- Scott Cray (ORCID: https://orcid.org/0000-0001-5493-5475)
- Tom J. L. C. Bakx
- Arend Moerman (ORCID: https://orcid.org/0000-0002-0475-6134)
- Fenno Steenvoorde
- Norika Okauchi
- Tai Oshima (ORCID: https://orcid.org/0009-0005-5915-1035)
- Kotaro Iwakami
- Kana Morokuma
- Leon G. Olde Scholtenhuis
- Haruyuki Sakurai
- Shun Ishii (ORCID: https://orcid.org/0000-0001-8337-4961)
- Yasunori Fujii
- Javier Aguilera
- Louis H. Marting
- Shuji Hotta
Institutions
- Leiden University (NL)
- High Energy Accelerator Research Organization (JP)
- National Astronomical Observatory of Japan (JP)
- Space Research Organisation Netherlands (NL)
- Nagoya University (JP)
- Chalmers University of Technology (SE)
- The University of Tokyo (JP)
- Delft University of Technology (NL)
- Kitami Institute of Technology (JP)
Publication Details
- Published
- 2024-08-16
- DOI
- https://doi.org/10.1117/12.3015295
- Primary Topic
- Superconducting and THz Device Technology
- Type
- article
- Field-Weighted Citation Impact
- 0.00