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Studying the great solar proton events during the solar cycle 23

Published online by Cambridge University Press:  01 November 2006

S.W. Samwel
Affiliation:
National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, Egypt e-mail: s_w_samwel@yahoo.com
A.A. Hady
Affiliation:
Astronomy Dept., Faculty of Science, Cairo University, Cairo, Egypt., e-mail: aahady@yahoo.com
Makram Ibrahim
Affiliation:
National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, Egypt e-mail: s_w_samwel@yahoo.com
Yousry. S. Hanna
Affiliation:
National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, Egypt e-mail: s_w_samwel@yahoo.com
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Abstract

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The present work concerns the study of the great solar proton events during the solar cycle 23. For this purpose, the temporal behavior of six solar indices during these great events will be studied. These indices are the radio flux (10.7cm) intensity, the sunspot no., the sunspot area, the GEOS X-ray background flux intensity, and the intensity of the X-ray flares and optical flares.

Type
Contributed Papers
Copyright
© 2006 International Astronomical Union