DESHIMA on ASTE: on-sky performance and upgrade to ultra wideband [VIDEO]

Akira Endo, Kenichi Karatsu, Tatsuya Takekoshi, Sjoerd Bosma, Bruno Buijtendorp, Esmee Huijten, Soh Ikarashi, Teun M. Klapwijk, Nuria Llombart, More Authors

Research output: Contribution to conferenceOtherOther research output

Abstract

The integrated superconducting spectrometer (ISS) enables ultra-wideband, large field-of-view integral-field-spectrometer designs for mm-submm wave astronomy. DESHIMA 2.0 is a single-pixel ISS spectrometer for the ASTE 10-m telescope, designed to observe the 220-440 GHz band in a single shot, corresponding to a [CII] redshift range of z=3.3-7.6. The first-light experiment of DESHIMA, using a 332-377 GHz configuration has shown excellent consistency between the performance derived from on-sky measurements, lab-measurements and the design. Ongoing upgrades towards the octave-bandwidth full system include the development of a filterbank chip with ~350 channels and higher optical efficiency, a wideband quasioptical design, and observing methods for efficiently removing the atmosphere.
Original languageEnglish
DOIs
Publication statusPublished - 2020
EventMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X - Virtual/online event due to COVID-19
Duration: 14 Dec 202018 Dec 2020

Conference

ConferenceMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X
Abbreviated titleSpie 11453
Period14/12/2018/12/20

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