Dependence of the neutron monitor count rate and time delay distribution on the rigidity spectrum of primary cosmic rays

2016 ◽  
Vol 121 (12) ◽  
pp. 11,620-11,636 ◽  
Author(s):  
P.-S. Mangeard ◽  
D. Ruffolo ◽  
A. Sáiz ◽  
W. Nuntiyakul ◽  
J. W. Bieber ◽  
...  

2016 ◽  
Author(s):  
Pierre-Simon Mangeard ◽  
David Ruffolo ◽  
A. Saiz ◽  
Waraporn Nuntiyakul ◽  
Suttiwat Madlee ◽  
...  


1970 ◽  
Vol 48 (4) ◽  
pp. 419-431 ◽  
Author(s):  
R. A. R. Palmeira ◽  
R. P. Bukata ◽  
P. T. Gronstal

The determination of the rigidity spectrum of solar-flare-produced cosmic rays is examined. A method based on the ratio of relative enhancements observed at two stations sufficiently separated in latitude is discussed, and graphs are presented showing the expected ratio of enhancements as a function of the spectral exponent of the flare-produced cosmic rays for 6 pairs of stations. This method, which assumes that the cosmic-ray particles arrive at the earth isotropically, is then applied to the 28 January 1967 event during which this condition of isotropy is shown to exist. An extension of this method to the case of anisotropic arrival of solar cosmic-ray particles using the concept of variational coefficient is outlined.



1972 ◽  
Vol 240 (102) ◽  
pp. 135-137 ◽  
Author(s):  
R. P. VERMA ◽  
T. N. RENGARAJAN ◽  
S. N. TANDON ◽  
S. V. DAMLE ◽  
YASH PAL


The magnetic rigidity spectrum of primary cosmic rays with Z ≥ 6, in the rigidity interval 2·5 to 16·0 GV, has been determined by means of a Cerenkov counter carried in the satellite Ariel. The integral spectrum shows a well-defined change in slope near 8·5 GV, indicating that this is probably the upper limit to the solar modulation process at this time (May and June 1962). In the rigidity interval covered by these measurements the integral spectrum is adequately represented by a power law with an exponent ca . 1.2 below 8.5 GV and ca . 1.5 above this rigidity. Under the plausible assumption that the integral galactic spectrum of these particles is represented by a power law with exponent 1·5, it follows that the solar modulation process in the 2·5 to 8·5 GV region is of the form J E = J ∞ [p/p o ] 0·3 , where J E is the intensity at the Earth of particles with rigidity greater than p , where p is in GV, J ∞ is the corresponding intensity outside the solar system, and p 0 ~ 8·5.





2007 ◽  
Vol 50 (9) ◽  
pp. 891-897
Author(s):  
A. A. Kochanov ◽  
T. S. Sinegovskaya ◽  
S. I. Sinegovskii


2008 ◽  
Vol 175-176 ◽  
pp. 541-543 ◽  
Author(s):  
G. Benkó ◽  
A.P. Chubenko ◽  
G. Erdös ◽  
S.I. Nikolsky ◽  
N.M. Nesterova ◽  
...  


2012 ◽  
Vol 39 (10) ◽  
pp. 105202 ◽  
Author(s):  
Y F Novoseltsev ◽  
R V Novoseltseva ◽  
G M Vereshkov


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