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Characteristics of cosmic ray pole-equator anisotropy derived from spherical harmonic analysis of neutron monitor data
| Content Provider | Semantic Scholar |
|---|---|
| Author | Takahashi, Hiroyuki Yahagi, Naohiro |
| Copyright Year | 1985 |
| Abstract | We have carried out the spherical hamonic analysis of cosmic ray neutron data from the worldwide network neutron monitor stations during the years, 1966-1969. The second zonal harmonic component obtained from the analysis corresponds to the Pole-Equator anisotropy of the cosmic ray neutron intensity. We have reported some preliminary results on such an anisotropy. In this paper, further studies on this subject are presented. The results obtained confirms our earlier results: Such an anisotropy makes a semi-annual variation. In addition to this, in this paper, it is shown that the Pole-Equator anisotropy makes a variation depending on the IMF sector polarities around the passages of the IMF sector boundary. A mechanism to interpret these results is also discussed. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19850026683.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
