Anomalous and Galactic Cosmic Rays at 1 AU During the Cycle 23/24 Solar Minimum

  title={Anomalous and Galactic Cosmic Rays at 1 AU During the Cycle 23/24 Solar Minimum},
  author={R. A. Leske and Alan C. Cummings and Richard A. Mewaldt and Edward C. Stone},
  journal={Space Science Reviews},
Anomalous cosmic ray (ACR) intensities at 1 AU at solar minimum generally track galactic cosmic ray (GCR) intensities such as those measured by neutron monitors, albeit with differences between solar polarity cycles. The unusual cycle 23/24 solar minimum was long-lasting with very low sunspot numbers and significantly reduced interplanetary magnetic field strength and solar wind dynamic pressure and turbulence, but also featured a heliospheric current sheet tilt that remained high for an… 
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