Rigidity dependence and the correlation with solar activity of the 11-year variation
- 15 May 1968
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Physics
- Vol. 46 (10), S915-S919
- https://doi.org/10.1139/p68-382
Abstract
The rigidity dependence of the modulation of the cosmic-ray intensity has been investigated using ground-based recorders during the period 1960–66. The intensities recorded by stations are found to be consistent with modulation spectra of the form (1−K/P and exp(−K/P) during the periods of increasing and decreasing cosmic-ray intensity. The question of the apparent phase lag of the cosmic-ray intensity behind the solar activity has also been examined. It is shown that the cosmic-ray intensity is well correlated with the emission of the coronal line, λ5303, from the vicinity of the solar equator.Keywords
This publication has 7 references indexed in Scilit:
- Low-Energy Cosmic-Ray Modulation Related to Observed Interplanetary Magnetic Field IrregularitiesPhysical Review Letters, 1966
- Discussion of paper by J. R. Manzano and J. R. Winckler, ‘Modulation of the primary spectrum during the recent solar cycle for rigidities between 4 and 12 billion volts’Journal of Geophysical Research, 1966
- Modulation of the primary spectrum during the recent solar cycle for rigidities between 4 and 12 billion voltsJournal of Geophysical Research, 1965
- Observations of primary cosmic-ray variations using ion chamber and Geiger counters: 1. A comparison of the long-term and Forbush variationsJournal of Geophysical Research, 1964
- An investigation of the Forbush decreases in the cosmic radiationJournal of Geophysical Research, 1960
- Energy Dependence of Transient Changes in the Primary Cosmic-Ray SpectrumPhysical Review B, 1960
- Cosmic-ray intensity variations during two solar cyclesJournal of Geophysical Research, 1958