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Galactic cosmic ray radial gradients and the anomalous he component near maximum solar modulation and to radii beyond 34 au from the sun
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Pyle, K. R. Simpson, J. A. McKibben, R. B. |
| Copyright Year | 1985 |
| Description | Radial gradients for relativistic galactic cosmic rays (E 70 MeV) remained nearly constant at approx. 2.5%/AU from 1978-84, which includes the period of maximum solar modulation in 1981-82. For energies 30-70 MeV/n, gradients decreased at solar maximum to values of 1%/AU (protons) and 4%/AU (helium), and appear to be increasing again in 1983-84 toward the values found for solar minimum. The anomalous helium component has not reappeared, either at 1 AU or at Pioneer 10 at R 34 AU. |
| File Size | 272279 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850026737 |
| Archival Resource Key | ark:/13960/t0ps2nx4k |
| Language | English |
| Publisher Date | 1985-08-01 |
| Access Restriction | Open |
| Subject Keyword | Space Radiation Protons Temporal Distribution Solar Activity Time Dependence Energy Spectra Pioneer 10 Space Probe Helium Cosmic Rays Galactic Radiation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
