Mirroring of fast solar flare electrons on a downstream corotating interaction region
作者:
K. A. Anderson,
J. Sommers,
R. P. Lin,
M. Pick,
P. Chaizy,
N. Murphy,
E. J. Smith,
J. L. Phillips,
期刊:
Journal of Geophysical Research: Space Physics
(WILEY Available online 1995)
卷期:
Volume 100,
issue A1
页码: 3-11
ISSN:0148-0227
年代: 1995
DOI:10.1029/94JA01811
数据来源: WILEY
摘要:
We discuss an example of confinement of fast solar electrons by a discrete solar wind‐interplanetary magnetic field structure on February 22, 1991. The structure is about 190,000 km in width and is clearly defined by changes in the direction of the magnetic field at the Ulysses spacecraft. This structure carries electrons moving toward the Sun as well as away from the Sun. A loss cone in the angular distribution of the fast electrons shows that mirroring, presumably magnetic, takes place downstream from the spacecraft. Following passage of this narrow structure, the return flux vanishes for 21 min after which time the mirroring resumes and persists for several hours. We identify the enhanced magnetic field region lying downstream from the Ulysses spacecraft that is responsible for the mirroring to be a corotating stream interaction region. Backstreaming suprathermal electron measurements by the Los Alamos National Laboratory plasma experiment on the Ulysses spacecraft support this interpretatio
点击下载:
PDF
(1013KB)
返 回