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A Coronal Disturbance Observed Simultaneously with a White-Light Coronameter and the 80 MHz Culgoora Radioheliograph

Published online by Cambridge University Press:  25 April 2016

R. T. Hansen ,
C. J. Garcia ,
R. J.-M. Grognard  and
K. V. Sheridan
R. T. Hansen
Affiliation:
High Altitude Observatory, Mauna Loa, Hawaii
C. J. Garcia
Affiliation:
High Altitude Observatory, Mauna Loa, Hawaii
R. J.-M. Grognard
Affiliation:
Division of Radiophysics, CSIRO, Sydney
K. V. Sheridan
Affiliation:
Division of Radiophysics, CSIRO, Sydney
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Extract

Observations on 1970 August 11 and 12 at Mauna Loa (Hawaii) of the white-light corona revealed a rare solar event in the form of a short-lived coronal brightening off the eastern limb of the Sun. The intensity of this region, as measured at a distance ρ = 1.5 (where ρ = R/R⊙), more than doubled over a period of five hours and then fell very abruptly (~10 min) to below its initial brightness. A complex radio event in the same region was observed simultaneously with the 80 MHz radioheliograph at Culgoora (Australia). Associations between the optical and radio events will be described and the physical implications briefly discussed.

Type
Contributions
Information
Publications of the Astronomical Society of Australia , Volume 2 , Issue 1 , July 1971 , pp. 57 - 60
Copyright
Copyright © Astronomical Society of Australia 1971

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References

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