DocumentCode
2002878
Title
Radio Astronomy in Millimetre Waves and Beyond ----- Nobeyama Radio Observatory and its Receiver Development
Author
Inatani, J. ; Kaifu, N
Author_Institution
Nobeyama Radio Observatory, Nobeyama, Nagano, 384-13 Japan
fYear
1989
fDate
4-7 Sept. 1989
Firstpage
128
Lastpage
135
Abstract
Nobeyama Radio Observatory has contributed to the recent progress of millimetre wave astronomy with the 45-m telescope and the millimetre array. High spatial resolution realized by these two telescopes has revealed detailed structure of the star forming regions and gas distribution in the external galaxies. The SIS mixer developed on the Nb/AlOx/Nb junction technology has been used in these telescopes and it has proved to be very low noise and quite reliable. A multi-beam SIS receiver is desired for more efficient millimetre and submillimetre wave observations.
Keywords
Clouds; Frequency; Niobium; Observatories; Optical receivers; Optical sensors; Radio astronomy; Spatial resolution; Superconducting device noise; Telescopes;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 1989. 19th European
Conference_Location
London, UK
Type
conf
DOI
10.1109/EUMA.1989.334146
Filename
4132675
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