Title
DESHIMA 2.0: Development of an Integrated Superconducting Spectrometer for Science-Grade Astronomical Observations
Author
Baselmans, J.J.A. (TU Delft Tera-Hertz Sensing; SRON Netherlands Institute for Space Research) 
Karatsu, K. (TU Delft Tera-Hertz Sensing; SRON Netherlands Institute for Space Research)
Llombart, Nuria (TU Delft Tera-Hertz Sensing)
Rybak, M. (TU Delft Tera-Hertz Sensing; Universiteit Leiden)
Bueno Lopez, J. (TU Delft Electronics)
Buijtendorp, B.T. (TU Delft Tera-Hertz Sensing)
Dabironezare, Shahab Oddin (TU Delft Tera-Hertz Sensing)
Hähnle, S.A. (TU Delft Tera-Hertz Sensing; SRON Netherlands Institute for Space Research)
Pascual Laguna, A. (TU Delft Tera-Hertz Sensing; SRON Netherlands Institute for Space Research)
Thoen, David (TU Delft Tera-Hertz Sensing)
Yates, S.J.C. (TU Delft Tera-Hertz Sensing; SRON Netherlands Institute for Space Research)
Endo, A. (TU Delft Tera-Hertz Sensing)
Date
2022
Abstract
Integrated superconducting spectrometer (ISS) technology will enable ultra-wideband, integral-field spectroscopy for (sub)millimeter-wave astronomy, in particular, for uncovering the dust-obscured cosmic star formation and galaxy evolution over cosmic time. Here, we present the development of DESHIMA 2.0, an ISS for ultra-wideband spectroscopy toward high-redshift galaxies. DESHIMA 2.0 is designed to observe the 220–440 GHz band in a single shot, corresponding to a redshift range of z = 3.3–7.6 for the ionized carbon emission ([C II] 158 μ m). The first-light experiment of DESHIMA 1.0, using the 332–377 GHz band, has shown an excellent agreement among the on-sky measurements, the laboratory measurements, and the design. As a successor to DESHIMA 1.0, we plan the commissioning and the scientific observation campaign of DESHIMA 2.0 on the ASTE 10-m telescope in 2023. Ongoing upgrades for the full octave-bandwidth system include the wideband 347-channel chip design and the wideband quasi-optical system. For efficient measurements, we also develop the observation strategy using the mechanical fast sky-position chopper and the sky-noise removal technique based on a novel data-scientific approach. In the paper, we show the recent status of the upgrades and the plans for the scientific observation campaign.
Subject
DESHIMA
Integrated superconducting spectrometer
Microwave kinetic inductance detector
Submillimeter astronomy
To reference this document use:
http://resolver.tudelft.nl/uuid:1877096a-9847-49f2-a569-9b8d0ea61aa0
DOI
https://doi.org/10.1007/s10909-022-02888-5
Embargo date
2023-07-01
ISSN
0022-2291
Source
Journal of Low Temperature Physics, 209 (3-4), 278-286
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Part of collection
Institutional Repository
Document type
journal article
Rights
© 2022 J.J.A. Baselmans, K. Karatsu, Nuria Llombart, M. Rybak, J. Bueno Lopez, B.T. Buijtendorp, Shahab Oddin Dabironezare, S.A. Hähnle, A. Pascual Laguna, David Thoen, S.J.C. Yates, A. Endo, More Authors