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Recent Development of the Nobeyama 17GHz Interferometer and Some Initial Results

Published online by Cambridge University Press:  14 August 2015

Keizo Kai*
Affiliation:
Tokyo Astronomical Observatory, University of Tokyo, Mitaka, Tokyo 181, Japan

Abstract

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We have constructed a 17GHz interferometer of a multi-correlator type at the Nobeyama Solar Radio Observatory. Novel features of the new interferometer are summarized as (i) high time-resolution up to 0.8 s and (ii) “real-time” calibration of the whole system with an accuracy of ~ 2% for amplitudes and ~ 2° for phases. With the aid of these advantages over an interferometer of a conventional drift-scan type we are able to detect and follow rapid time variations of even a faint source (say, ~ 0.5 s.f.u.) on the Sun with a spatial resolution of ~ 40″. The interferometer has been put in operation since July 1978. We have recorded hundreds of bursts at 17GHz in a year including some tens of rapidly changing sources which would not precisely be measured so far. We present here some preliminary results of observations such as polarization structures of both rapidly changing and GRF bursts.

Type
Session II - Active Regions
Copyright
Copyright © Reidel 1980 

References

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