Physics
Scientific paper
Apr 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998p%26ss...46..439e&link_type=abstract
Planetary and Space Science, v. 46, p. 439-448.
Physics
8
Scientific paper
We have examined the effect of heliospheric current sheet (HCS) crossings on cosmic ray intensity (CRI), solar wind speed, interplanetary magnetic field (IMF) and the cosmic ray solar diurnal anisotropy in free space. Data from eight neutron monitors and three muon telescopes, covering a wide energy and latitude range, were separated into two epochs, 1971-1979 (A > 0) and 1981-1990 (A < 0) according to the solar magnetic polarity. The CRI is more strongly affected during the A > 0 than during the A < 0 epoch. The increase in CRI associated with A-T HSC crossings was larger in magnitude than that of T-A crossings, and the magnitude was dependent on the rigidity of the particles. A symmetric negative cosmic ray gradient was observed with respect to the HCS. HCS crossings have no observable effect on the CRI observed by shallow underground detectors. Changes in solar wind speed and IMF magnitude, near HCS crossings, are related to the distance of the Earth from the sheet. We found no consistent changes in the solar diurnal variation related to HCS crossings.
Duldig Marc L.
El-Borie M. A.
Humble John E.
No associations
LandOfFree
Galactic cosmic ray modulation and the passage of the heliospheric current sheet at Earth does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Galactic cosmic ray modulation and the passage of the heliospheric current sheet at Earth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Galactic cosmic ray modulation and the passage of the heliospheric current sheet at Earth will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1606819