A LARGE SOUTHWARD MAGNETIC-FIELD OF -23.5 NT IN THE JANUARY 10, 1995,PLASMOID

Authors
NAGAI T FUJIMOTO M NAKAMURA MS NAKAMURA R SAITO Y MUKAI T YAMAMOTO T NISHIDA A KOKUBUN S
Citation
T. Nagai et al., A LARGE SOUTHWARD MAGNETIC-FIELD OF -23.5 NT IN THE JANUARY 10, 1995,PLASMOID, J GEO R-S P, 103(A3), 1998, pp. 4441-4451
Citations number
26
Categorie Soggetti
Geosciences, Interdisciplinary","Astronomy & Astrophysics","Metereology & Atmospheric Sciences",Oceanografhy,"Geochemitry & Geophysics
Journal title
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
ISSN journal
21699380 → ACNP
Volume
103
Issue
A3
Year of publication
1998
Pages
4441 - 4451
Database
ISI
SICI code
2169-9380(1998)103:A3<4441:ALSMO->2.0.ZU;2-O
Abstract
This paper reports a large southward magnetic field of -23.5 nT in the Earth's magnetotail at a radial distance of 46 R-E, observed with Geo tail on January 10, 1995. The large southward field was part of a bipo lar B-z signature of a plasmoid in association with a well-isolated su bstorm under steady solar wind conditions. Magnetic field and plasma o bservations are analyzed and compared with results from a hybrid simul ation for magnetic reconnection, The large southward field is produced by the piling up of field lines due to colliding fast tailward flowin g plasmas. This study implies that the piling-up mechanism plays an im portant role in the evolution of plasmoids traveling in the magnetotai l.