Investigations of Cosmic Ray Strength in the Heliosphere Through Solar Cycles 23 and 24
Abstract
Solar wind disturbances and magnetic turbulence inside the heliosphere are affected by GCR, which effect is known as Solar Modulation. A data-driven investigation of the Galactic Cosmic Ray flux's temporal dependence over the Solar Cycle is carried out to investigate this event. Every month, we gather GCR data using a global statistical inference to ascertain how rigidity and time affect the GCR diffusion parameters. In this article, we examine their connections to the dynamics of the heliospheric plasma and analyse their meaning in terms of fundamental particle transport mechanisms. The observation is based on monthly mean count rate of CRI data from neutron monitors (Moscow, Oulu) and solar-interplanetary interaction through Omniweb data centre for the Solar cycle 23–24 interval. During the minimum period during Solar cycle 23/24, we detected significant levels of CR strength with a low level of solar interplanetary activity parameters. Data on CRI and solar interplanetary parameters—that is, data that are better anti-correlated with solar activity parameters—are correlated using certain statistical procedures.
Keywords
Full Text:
PDFReferences
Matthaeus, W. H., H. A. Elliott, and D. J. McComas (2006), Correlation of speed and temperature in the solar wind, J. Geophys. Res., 111, A10103, doi:10.1029/2006JA011636.
G.P. Zank, L.Adhikari, and P. Hunana. D. Shiota, R. Bruno, and D. Telloni. Theory and Transport of Nearly Incompressible Magnetohydrodynamic Turbulence. Astrophys. J.835, (2017), 147.
Partha Chowdhury, Debi Prasad Choudhary, Sanjay Gosain.A study of the hemispheric asymmetry of sunspot area during solar cycles 23 and 24. The Astrophysical Journal. 2013; 768 (2): 188.
L. L. Zhao, L. Adhikari, G.P. Zank, Q. Hu & X.S. Feng Astrophys. J. Influence of the Solar Cycle on Turbulence Properties and Cosmic-Ray Diffusion. 2018; 856 (2) 94.
Forbush, On the Effects in Cosmic-Ray Intensity Observed During the Recent Magnetic Storm. Physics Rev. 51, (1937),1108-1109.
E. N.Parker. The passage of energetic charged particles through interplanetary space. Planet. Space Sci,13,9- 49, doi:10.1016/0032-0633(65).
Zhang G, Burlaga LF. Magnetic clouds, geomagnetic disturbances, and cosmic ray decreases. Journal of Geophysical Research: Space Physics. 1988 Apr 1;93(A4):2511-8.
Tiwari BK, Ghormare BR, Shrivastava PK, Tiwari DP. Study of variation in Cosmic ray Intensity due to Solar- Interplanetary activity between 1996-2013. Research Journal of Physical Sciences 2014; 2320:4796.
Burlaga L, Sittler E, Mariani F, Schwenn AR. Magnetic loop behind an interplanetary shock: Voyager, Helios, and IMP 8 observations. Journal of Geophysical Research: Space Physics. 1981 Aug 1;86(A8):6673-84.
Potgieter, M.S. Cosmic Rays in the Inner Heliosphere: Insights from Observations, Theory and Models. Space Sci Rev 176, 165–176 (2013). https://doi.org/10.1007/s11214-011-9750-7
H. S. Ahluwalia and R. Modzelewska. Galactic Cosmic Ray Transport in the Heliosphere: study with muon data. Advances in Space Research. Volume 66, Issue 2, 15 July 2020, Pages 462-467.
B. K. Tiwari, B. R. Ghormare, P. K. Shrivastava, D. P. Tiwari (2014). Study of variation in Cosmic ray Intensity due to Solar- Interplanetary activity between 1996-2013. Res. J. Physical Sci., 2(3), 4-8.
Modzelewska, R., Alania, M.V. The 27-Day Cosmic Ray Intensity Variations During Solar Minimum 23/24. Sol Phys 286, 593–607 (2013). https://doi.org/10.1007/s11207-013-0261-4
M.S. Potgieter, H. Moraal, Acceleration of cosmic rays in the solar wind termination shock. I. A steady state technique in a spherically symmetric model. Astrophys. J. 330, 445 (1988). https://doi.org/10.1086/166482
Nagashima K, Morishita I. Long term modulation of cosmic rays and inferable electromagnetic state in solar modulating region. Planetary and Space Science. 1980 Feb 1;28(2):177-94.
G. Qin, F.-J. Kong, and L.-H. Zhang. Effects of Shock and Turbulence Properties on Electron Acceleration. The Astrophysical Journal, 860:3 (9pp), 2018 June 10
Barnes, Sarah, Anzori Georgadze, Andrea Giammanco, Madis Kiisk, Vitaly A. Kudryavtsev, Maxime Lagrange, and Olin Lyod Pinto. 2023. "Cosmic-Ray Tomography for Border Security" Instruments 7, no. 1:13. https://doi.org/10.3390/instruments7010013
DOI: https://doi.org/10.37591/rrjosst.v12i2.3805
Refbacks
- There are currently no refbacks.
eISSN: 2321–2837