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The Next Plan of the Nobeyama Radioheliograph

Published online by Cambridge University Press:  12 April 2016

T. Takano
Affiliation:
Nobeyama Radio Observatory, The National Astronomical Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
S. Enome
Affiliation:
Nobeyama Radio Observatory, The National Astronomical Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
H. Nakajima
Affiliation:
Nobeyama Radio Observatory, The National Astronomical Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
K. Shibasaki
Affiliation:
Nobeyama Radio Observatory, The National Astronomical Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
M. Nishio
Affiliation:
Nobeyama Radio Observatory, The National Astronomical Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
Y. Hanaoka
Affiliation:
Nobeyama Radio Observatory, The National Astronomical Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
C. Torii
Affiliation:
Nobeyama Radio Observatory, The National Astronomical Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
H. Sekiguchi
Affiliation:
Nobeyama Radio Observatory, The National Astronomical Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
T. Bushimata
Affiliation:
Nobeyama Radio Observatory, The National Astronomical Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
S. Kawashima
Affiliation:
Nobeyama Radio Observatory, The National Astronomical Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
N. Shinohara
Affiliation:
Nobeyama Radio Observatory, The National Astronomical Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
Y. Irimajiri
Affiliation:
Nobeyama Radio Observatory, The National Astronomical Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
H. Koshiishi
Affiliation:
Nobeyama Radio Observatory, The National Astronomical Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan The Department of Astronomy, The Graduate School of Science, The University of Tokyo, Tokyo 113, Japan
T. Kosugi
Affiliation:
Nobeyama Radio Observatory, The National Astronomical Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
Y. Shiomi
Affiliation:
Nobeyama Radio Observatory, The National Astronomical Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan
M. Sawa
Affiliation:
Nobeyama Radio Observatory, The National Astronomical Observatory, Nobeyama, Minamisaku, Nagano 384-13, Japan

Extract

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A high time- and spatial-resolution radio interferometer for solar observations has been constructed at Nobeyama (Figure I.; Nakajima et al. 1994). The Nobeyama Radioheliograph consists of 84 antennas, 0.8m in diameter, arranged on a T-shape lines of 500m in the EW and 220m in the NS directions. The time resolution is 50 ms and the spatial resolution is 10”. The field of view is 40’ at the observing frequency 17GHz, which enables us to watch the whole sun. The radioheliograph has observed hundreds of flares during the few months since the beginning of regular observations in July ‘92, and such powerful performance has never before been demonstrated in the history of solar radio observations.

Type
4. Plans for the Future
Copyright
Copyright © Astronomical Society of the Pacific 1994

References

Irimajiri, Y., Takano, T., Nishio, M., Shibasaki, K., Enome, S., and Nakajima, H. 1991, IEICE, Japan, Tech. Report, AP91-58, 31 (in Japanese)Google Scholar
Nakajima, H., Enome, S., Shibasaki, K., Nishio, M., Takano, T., Hanaoka, Y., Torii, C., Sekiguchi, H., Bushimata, T., Kawashima, S., Shinohara, N., Irimajiri, Y., Koshiishi, H., Kosugi, T., Shiomi, Y., Sawa, M., and Kai, K. 1994, to appear in proceedings of IEEE, “Design and Instrumentation of Antennas for Deep Space Telecommunications and Radioastronomy” Google Scholar