scholarly journals Magnetic rigidity of horocycle flows

2006 ◽  
Vol 225 (2) ◽  
pp. 301-323 ◽  
Author(s):  
Gabriel Paternain
Keyword(s):  
Magnetic Rigidity

Implications of the cosmic-ray radial intensity gradients observed during minimum solar modulation

1968 ◽  
Vol 46 (10) ◽  
pp. S946-S949 ◽  
Author(s):  
J. J. O'Gallagher
Keyword(s):  
Diffusion Coefficient ◽  
Solar Cycle ◽  
Solar Minimum ◽  
Cosmic Ray ◽  
Solar Modulation ◽  
Space Probe ◽  
Magnetic Rigidity ◽  
A Value ◽  
Particle Parameters ◽  
Gradient Measurements

We have already reported the cosmic-ray radial intensity gradients for both protons and helium nuclei measured over two decades in Rβ (magnetic rigidity R times velocity β) on the Mariner IV space probe in 1965 which showed that the modulating function is separable into the product of a function of particle parameters and a function of the time t and the heliocentric radius r for the observations (O'Gallagher and Simpson 1967). The modulating function can be written as exp (−η(r, t)/ƒ(R, β)) where η(r, t) is the modulating parameter and ƒ(R, β) = Rβ for [Formula: see text] and ƒ(R, β) [Formula: see text] β for [Formula: see text]. The magnitude of the observed gradient corresponds to a change Δη = −0.2 ± 0.05 GV for Δr = 0.4 AU and at 1 GV yields a value for the diffusion coefficient in Parker's model of 3.2 × 1021 cm/s. If the value of η in 1965 is small [Formula: see text], the observed value of Δη/Δr implies that the greatest part of the modulation takes place within 5 AU at solar minimum. The value of Δη; derived from these gradient measurements is compared with estimates of the change in η required to produce the observed time–intensity variations during the solar cycle.

ASTROGAM: A magnetic rigidity spectrometer for gamma ray astronomy

1990 ◽  
Author(s):  
J. H. Adams ◽  
S. P. Ahlen ◽  
L. M. Barbier ◽  
J. J. Beatty ◽  
P. Carlson ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Magnetic Rigidity ◽  
Gamma Ray Astronomy

scholarly journals New Universal Cosmic-Ray Knee near a Magnetic Rigidity of 10 TV with the NUCLEON Space Observatory

JETP Letters ◽  
2018 ◽  
Vol 108 (1) ◽  
pp. 5-12 ◽  
Author(s):  
E. Atkin ◽  
V. Bulatov ◽  
V. Dorokhov ◽  
N. Gorbunov ◽  
S. Filippov ◽  
...  
Keyword(s):  
Cosmic Ray ◽  
Space Observatory ◽  
Magnetic Rigidity
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