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Heliospheric Modulation of Cosmic Rays and Solar Activity during Solar Cycles 22-24

Published online by Cambridge University Press:  27 November 2018

Prithvi Raj Singh ,
C. M. Tiwari  and
A. K. Saxena
Prithvi Raj Singh
Affiliation:
Department of PhysicsA.P.S. University, Rewa- 486003, India email: [email protected]
C. M. Tiwari
Affiliation:
Department of PhysicsA.P.S. University, Rewa- 486003, India email: [email protected]
A. K. Saxena
Affiliation:
Department of PhysicsA.P.S. University, Rewa- 486003, India email: [email protected]
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Abstract

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We have studied, the relationship between monthly variations of average counting rates of cosmic ray intensity (CRI) at Moscow super neutron monitoring station with mid cut-off rigidities (~2.42 GV), and the solar radio flux at 10.7cm (F10.7) and sunspot number (SSN) during the solar cycles 22 − 24. The F10.7cm (2800 MHz) and SSN is an excellent indicator of solar activity for the study period. We have investigated the patterns of long-term and mid-term periodicities of SSN and F10.7, using Fast Fourier Transform (FFT) technique. We have observed the time-lag between ascending phase of CRI with F10.7cm and SSN during solar cycles 22 − 24.

Keywords

Solar Activity (SSN, F10.7 cm)Cosmic Ray Intensity (CRI)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S340: Long-term Datasets for the Understanding of Solar and Stellar Magnetic Cycles , February 2018 , pp. 147 - 148
Copyright
Copyright © International Astronomical Union 2018 

References

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Singh, P. R., Saxena, A. K., & Tiwari, C. M., J Astrophys Astron, 39, 20, 2018.Google Scholar