Anomalous cosmic rays: Observations

被引：16

作者：

Cummings, AC ^{[1
]}

Stone, EC ^{[1
]}

机构：

[1] CALTECH, Pasadena, CA 91125 USA

来源：

TRANSPORT OF GALACTIC AND ANOMALOUS COSMIC RAYS IN THE HELIOSPHERE: OBSERVATIONS, SIMULATIONS AND THEORY | 1999年 / 23卷 / 03期

关键词：

D O I：

10.1016/S0273-1177(99)80005-2

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The latitudinal gradients of galactic cosmic ray protons and anomalous cosmic ray (ACR) helium appear to be symmetrical about a plane displaced similar to 10 degrees south of the heliographic equator, similar to the displacement of the heliospheric current sheet (HCS). The radial gradient of similar to 10 MeV/nuc ACR oxygen in the outer heliosphere is correlated with the amplitude of the tilt of the HCS. The form of the correlation depends on the magnetic polarity of the solar cycle. The observed radial gradients are the basis for an empirical model that reasonably describes the modulation of similar to 2-3 GV ACR oxygen at low heliographic latitudes over a 25-year period. (C) 1999 COSPAR. Published by Elsevier Science Ltd.

引用

页码：509 / 520

页数：12

共 26 条

[1] OBSERVATIONS OF ANOMALOUS COSMIC-RAY HYDROGEN FROM THE VOYAGER SPACECRAFT [J].