English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

The paper describes differences in the intensity as a function of radialdistance of anomalous and galactic cosmic rays in the N-S heliosheaths asobserved by the Voyager 1 and 2 spacecraft respectively. The anomalous cosmicray (ACR) intensities above a few MeV in the N heliosheath reach a maximum at~2009.5, about 16 AU beyond the heliospheric current sheet (HTS), thusindicating a possible source location for these higher energy particles. Thegalactic cosmic ray electron and nuclei intensities continue to increaserapidly throughout the entire N-heliosheath out to 121.7 AU. Two suddenincreases of these electrons at 16.6 and 22.2 AU beyond the HTS suggest thatthe V1 spacecraft passed significant heliosheath structures at these times.Later, at 121.7 AU, which is a distance of 27.6 AU beyond the initial HTScrossing distance, V1 in the N heliosheath appears to pass beyond the ACRtrapping region as the anomalous particles disappear suddenly and completely.At V2 in the S heliosheath, large 42-21 day periodic intensity variations wereobserved for a few MeV particles just beyond the HTS crossing distance at 83.7AU and again about a year later when V2 was ~4 AU beyond this shock. These arethe dominant features of the energetic particle populations in the inner partof the S-heliosheath. The ACR and electrons later decreased to almostbackground levels until a sudden increase at 2011.25, at a distance of about 10AU beyond the HTS. The features observed by V2 in the S heliosheath relative tothose at V1 indicate a much more structured S heliosheath in which the latitudeof V2 relative to the HCS maximum latitude (sector zone) may play an importantrole. Estimates of a S heliosheath trapping/modulation boundary for energeticparticles in the range 105-110 AU are obtained in this paper from a comparisonwith those at 121.7 AU observed in the N hemisphere.

Voyager 1 and 2 Observations of Cosmic Ray Intensities in the  North-South Heliosheaths-Implications for the Latitude Extent of the  Heliospheric Current Sheet and Radial Structure in the Heliosheath