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Association of X-Ray Flares with Solar Coronal Active Regions

Published online by Cambridge University Press:  14 August 2015

P. R. Sengupta
P. R. Sengupta*
Affiliation:
Institute of Applied Manpower Research New Delhi-1, India

Summary

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It is known that the flare component of solar X-ray emission is sensitive to the level of solar activity. The location of the X-ray flaring region is not directly known but can be inferred from the location of the associated Hα flare. A detailed study of more than 4000 solar X-ray flares recorded by UI and the NRL detectors during past eight years has shown that 85% of these flares definitely occurred in the active regions. For the rest 15% no definite conclusion was possible because either Hα flare data was not available or no Hα flare was reported within ± 15 min of these X-ray flares.

Type
Part 3: Solar Flares
Information
Symposium - International Astronomical Union , Volume 68: Solar X, Gamma, and EUV Radiation , 1975 , pp. 183
Copyright
Copyright © Reidel 1975 

References

Sengupta, P. R.: 1971, ‘A Study of Solar X-ray Emission and its Effect on the Earth's Ionosphere’, D.Sc. Thesis, Department of Electronics, I.I.T., Kharagpur, India.Google Scholar
Sengupta, P. R.: 1974, Space Res. 14, 461.Google Scholar