Cluster Observation of Magnetic Structure and Electron Flows at a Northward Interplanetary Magnetic Field X-Line

Date

2006-01

Department

Program

Citation of Original Publication

Wendel, D. E., et al. ""Cluster Observation of Magnetic Structure and Electron Flows at a Northward Interplanetary Magnetic Field X-Line."" Proceedings Cluster and Double Star Symposium – 5th Anniversary of Cluster in Space, Noordwijk, The Netherlands, 19 - 23 September 2005. https://sci.esa.int/documents/34817/36255/1567253602750-7.3_Wendel.pdf.

Rights

This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Public Domain Mark 1.0

Subjects

Abstract

On March 18, 2002, the Cluster satellites traveled from the earth’s northern mantle into the magnetosheath. During this time, the IMAGE spacecraft observed a long-lived proton emission northward of the auroral zone. The Cluster electron and magnetic field data suggest Cluster passed within 1 km of an active reconnection line, entering the ion diffusion region and the edge of the electron diffusion region. We present the current structure, velocity, orientation, and size of the reconnection line. The functional fit to the data also gives an estimate of 100 km for the thickness of the current sheet. We propose that the x-line, though wavering over the spacecraft, is globally stable during Cluster's passage through the magnetopause.