Long term time variability of cosmic rays and possible relevance to the development of life on Earth

@inproceedings{ADErlykin2010LongTT,
  title={Long term time variability of cosmic rays and possible relevance to the development of life on Earth},
  author={A.D.Erlykin and A.W.Wolfendale},
  year={2010}
}
An analysis is made of the manner in which the cosmic ray intensity at Earth has varied over its existence and its possible relevance to both the origin and the evolution of life. Much of the analysis relates to the ’high energy’ cosmic rays (E > 10eV ; = 0.1PeV ) and their variability due to the changing proximity of the solar system to supernova remnants which are generally believed to be responsible for most cosmic rays up to PeV energies. It is pointed out that, on a statistical basis… Expand
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References

SHOWING 1-10 OF 63 REFERENCES
Supernova remnants and the origin of the cosmic radiation: II. Spectral variations in space and time
The model described by us earlier (Erlykin and Wolfendale 2001a J. Phys. G: Nucl. Part. Phys. 27 941), which involves Monte Carlo calculations for cosmic rays accelerated by supernova remnants in theExpand
Long-term geomagnetic changes and their possible role in regional atmospheric ionization and climate
Cosmic rays form the primary source of the lower atmospheres ionization, which may potentially affect the regional climate. The ionization at a given location is affected by two factors solarExpand
The spiral structure of the Milky Way, cosmic rays, and ice age epochs on Earth
Abstract The short term variability of the galactic cosmic ray flux (CRF) reaching Earth has been previously associated with variations in the global low altitude cloud cover. This CRF variabilityExpand
The role of cosmic rays in the atmospheric processes
The energy flux of galactic cosmic rays falling on the earth's atmosphere is small in comparison with solar electromagnetic irradiation (by 108 times). But at altitudes of h ~ 3 to 35 km in theExpand
Status of the EAS studies of cosmic rays with energy below 10**16 eV
This paper briefly summarizes the status of the cosmic ray observations by EAS (Extended Air Shower) experiments with energy below 10**16eV and the related studies of the hadronic interaction models.Expand
Forbush Decreases of Cosmic Rays and Total Ozone at Northern Higher Middle Latitudes
Space weather affects the Earth's atmosphere in many ways and through various phenomena. Among them, geomagnetic storms and the variability of the galactic cosmic ray flux belong to the mostExpand
Supernova remnants and the origin of the cosmic radiation: I. SNR acceleration models and their predictions
An analysis is made of the cosmic ray energy spectrum expected from supernova remnant acceleration of cosmic rays for energies below the well known knee at 3×106 GeV. Two models are considered; thatExpand
A comparison of cosmic-ray energy spectra in Galactic spiral arm and interarm regions
A detailed comparison is made of the cosmic gamma -ray energy spectra from directions associated with the Orion spiral arm and, separately, the interarm region. It is found that the spectra areExpand
A single source of cosmic rays in the range - eV
The advent of new and improved extensive air shower (EAS) arrays - and the attendant generation of data of higher statistical precision than hitherto - has led us to return to an old problem: theExpand
Runaway breakdown and electric discharges in thunderstorms
This review concerns the theory of the avalanche multiplication of high-energy (0.1 – 10 MeV) electrons in a neutral material, a newly discovered phenomenon known as runaway breakdown (RB). InExpand
...
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2
3
4
5
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