Physics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsh41b1626p&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SH41B-1626
Physics
2162 Solar Cycle Variations (7536), 7514 Energetic Particles (2114), 7599 General Or Miscellaneous
Scientific paper
The intensity time me profiles of Relativistic Solar Protons (RSP) in the period 1942 to 2006 were analyzed by means of the Morlet Spectral technique: the periodicities of their time series were determined. Furthermore, RSP time series together with those of several solar activity indexes were analyzed by means of the Wavelet Coherence spectral method. In spite of the short time interval, several periodicities of RSP have been determined in this work,: the short"]term (ST) periodicities, in the order of days, all them harmonic of the 11 years solar activity cycle. We have also determined ultra"]short term (UST) periodicities, in the order of minutes to hours. We have shown by means of Coherence analysis that most of the established (ST) periodicities, also appear in subphotospheric and coronal layers. This synchronization seems to indicate that RSP phenomena is not a local one, but involve global regions of the sun atmosphere.
Pérez-Peraza J. A.
Velasco-Herrera Víctor Manuel
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