Atacama Submillimeter Telescope Experiment (ASTE)
National Astronomical Observatory of Japan | 2019 Aug 05
Japanese-Dutch Joint Development of Innovative Radio Receivers
Researchers in Japan and the Netherlands jointly developed an originative radio receiver DESHIMA (Deep Spectroscopic High-redshift Mapper) and successfully obtained the first spectra and images with it. Combining the ability to detect a wide frequency range of cosmic radio waves and to disperse them into different frequencies, DESHIMA demonstrated its unique power to efficiently measure the distances to the remotest objects as well as to map the distributions of various molecules in nearby cosmic clouds.
"Deshima" (or, Dejima) was a Dutch trading post in Japan built in the mid-17th century. For 200 years, Deshima was Japan’s precious window to the world. Now, the two friendly nations open up another window to a new world, the vast Universe, with innovative nanotechnology.
"DESHIMA is a completely new type of astronomical instrument with which a 3D map of the early Universe can be constructed," said Akira Endo ...
The uniqueness of DESHIMA is that it can disperse the wide frequency range of radio waves into different frequencies. DESHIMA’s instantaneous frequency width (332 - 377 GHz) is more than five times wider than that of the receivers used in the Atacama Large Millimeter/submillimeter Array (ALMA). ...
First light demonstration of the integrated superconducting spectrometer ~ Akira Endo et al
- Nature Astronomy (online 05 Aug 2019) DOI: 10.1038/s41550-019-0850-8
- arXiv.org > astro-ph > arXiv:1906.10216 > 24 Jun 2019
Dutch Japanese Instrument Measures 49 Shades of Far-Infared
Netherlands Research School for Astronomy (NOVA) | 2019 Aug 05
Wideband On-Chip Terahertz Spectrometer Based on a Superconducting Filter Bank ~ Akira Endo et al