Distinct Pattern of Solar Modulation of Galactic Cosmic Rays above a High Geomagnetic Cutoff Rigidity

2018 ◽  
Vol 858 (1) ◽  
pp. 43 ◽  
Author(s):  
Pierre-Simon Mangeard ◽  
John Clem ◽  
Paul Evenson ◽  
Roger Pyle ◽  
Warit Mitthumsiri ◽  
...  
Keyword(s):  
Cosmic Rays ◽  
Galactic Cosmic Rays ◽  
Distinct Pattern ◽  
Solar Modulation ◽  
Cutoff Rigidity ◽  
Geomagnetic Cutoff Rigidity ◽  
Geomagnetic Cutoff

Electron component in primary cosmic rays. I. Experiment

1968 ◽  
Vol 46 (10) ◽  
pp. S530-S532 ◽  
Author(s):  
A. Danjo ◽  
S. Hayakawa ◽  
F. Makino ◽  
Y. Tanaka
Keyword(s):  
Energy Spectrum ◽  
Cosmic Rays ◽  
Energy Range ◽  
Power Law ◽  
Differential Spectrum ◽  
Cutoff Rigidity ◽  
Electron Component ◽  
Geomagnetic Cutoff Rigidity ◽  
Geomagnetic Cutoff ◽  
Primary Cosmic Rays

The energy spectrum of electrons in the primary cosmic rays was measured at a location where the vertical geomagnetic cutoff rigidity is 11.5 GV, using a balloon-borne counter system. The differential spectrum was determined in the energy range from 13 to 50 GeV and is represented by a power law with exponent −2.4 ± 0.6. This result is consistent with a spectrum extending smoothly from lower energies with the same slope.

The electron energy spectrum in the flux of galactic cosmic rays

1968 ◽  
Vol 46 (10) ◽  
pp. S518-S521 ◽  
Author(s):  
V. I. Rubtsov ◽  
V. I. Zatsepin
Keyword(s):  
Electron Flux ◽  
Cosmic Ray ◽  
Galactic Cosmic Rays ◽  
Electron Energy Spectrum ◽  
Cutoff Rigidity ◽  
Lead Absorber ◽  
Multiply Charged ◽  
Geomagnetic Cutoff Rigidity ◽  
Geomagnetic Cutoff ◽  
Made In

The primary cosmic-ray electron flux between 3.5 and 80 BeV has been measured with a system composed of scintillation detectors separated by a lead absorber, and with careful discrimination against protons and multiply-charged nuclei. Observations are presented for two balloon flights made in the summer of 1966 at a latitude corresponding to a geomagnetic cutoff rigidity of about 2.5 GV. The results obtained are well represented by a power-law spectrum of the form:[Formula: see text]between 3.5 and 80 BeV. A comparison is made with the results of other investigators.

scholarly journals Parameters of current systems in the magnetosphere as derived from observations of cosmic rays during the June 2015 magnetic storm

2017 ◽  
Vol 3 (3) ◽  
pp. 13-17 ◽  
Author(s):  
Геннадий Кичигин ◽  
Gennadiy Kichigin ◽  
Марина Кравцова ◽  
Marina Kravtsova ◽  
Валерий Сдобнов ◽  
...  
Keyword(s):  
Cosmic Rays ◽  
Magnetic Storm ◽  
Ring Current ◽  
Planetary System ◽  
Cutoff Rigidity ◽  
Geomagnetic Cutoff Rigidity ◽  
Geomagnetic Cutoff ◽  
Subsolar Point ◽  
Worldwide Network ◽  
Current Systems

Basing on measurements of cosmic rays at the worldwide network of stations, we calculate variations in the planetary system of geomagnetic cutoff rigidity for the 2015 June moderate geomagnetic storm. Using the axisymmetric model of the limited magnetosphere taking into account magnetopause currents and the ring current, we determine the distance to the subsolar point and the ring current radius, as well as the contribution of the ring current to variations in the geomagnetic cutoff rigidity and to the Dst index.

scholarly journals Parameters of current systems in the magnetosphere as derived from observations of cosmic rays during the June 2015 magnetic storm

2017 ◽  
Vol 3 (3) ◽  
pp. 15-19 ◽  
Author(s):  
Геннадий Кичигин ◽  
Gennadiy Kichigin ◽  
Марина Кравцова ◽  
Marina Kravtsova ◽  
Валерий Сдобнов ◽  
...  
Keyword(s):  
Cosmic Rays ◽  
Magnetic Storm ◽  
Ring Current ◽  
Planetary System ◽  
Cutoff Rigidity ◽  
Geomagnetic Cutoff Rigidity ◽  
Geomagnetic Cutoff ◽  
Subsolar Point ◽  
Worldwide Network ◽  
Current Systems

Basing on measurements of cosmic rays at the worldwide network of stations, we calculate variations in the planetary system of geomagnetic cutoff rigidity for the 2015 June moderate geomagnetic storm. Using the axisymmetric model of the limited magnetosphere taking into account magnetopause currents and the ring current, we determine the distance to the subsolar point and the ring current radius, as well as the contribution of the ring current to variations in the geomagnetic cutoff rigidity and to the Dst index.

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