HR: 1340h
AN: SM23A-0394 INVITED     [Abstracts]
TI: Measuring Reconnection Electric Fields on MMS: The Double Probe Technique
AU: * Ergun, R
EM: ree@lasp.colorado.edu
AF: University of Colorado, LASP, Boulder, CO 80303 United States
AU: Cully, C
EM: cully@colorado.edu
AF: University of Colorado, LASP, Boulder, CO 80303 United States
AU: Torbert, R
EM: Roy.Torbert@unh.edu
AF: University of New Hampshire, Space Science Center, Durham, NH 03824 United States
AU: Burch, J
EM: jburch@swri.edu
AF: Southwest Research Institute, 6220 Culebra Rd., San Antonio, TX 78238 United States
AU: Lindqvist, P
EM: lindqvist@plasma.kth.se
AF: Royal Institute of Technology, AlfvAcn Laboratory, Stockholm, SE-100 Sweden
AU: Eriksson, A
EM: Anders.Eriksson@irfu.se
AF: Swedish Institute of Space Physics, Uppsala Division, Uppsala, SE-775 Sweden
AB: One of the major scientific goals of the Magnetospheric MultiScale mission is to understand the fluid and kinetic properties of magnetic reconnection. Such a scientific advance requires accurate measurements of the electric and magnetic fields in a rapidly changing plasma environment. In particular, the difference between the plasma flow and ExB, the parallel electric field, and the plasma wave environment need to be determined. The dc electric fields need to be measured to an accuracy of ~1 mV/m in the sub-solar and magnetotail reconnection regions to test and improve the current theoretical and numerical treatments. We present a conceptual design of a three-axis double probe electric field instrument for the Magnetospheric MultiScale mission and discuss the sources of measurement error. The design is compared to those on Cluster II, Polar, and FAST. Quasi self-consistent simulations of spacecraft potentials and photoelectron fluxes are used to quantify errors from the relative orientation of the sun, flow velocity, and he magnetic field direction. The MMS double probe instrument will be developed in a coordinated effort between the Royal Institute of Stockholm, the University of Colorado, and the University of New Hampshire.
DE: 2712 Electric fields (2411)
DE: 2723 Magnetic reconnection (7526, 7835)
DE: 2724 Magnetopause and boundary layers
DE: 7526 Magnetic reconnection (2723, 7835)
DE: 7835 Magnetic reconnection (2723, 7526)
SC: SPA-Magnetospheric Physics [SM]
MN: Fall Meeting 2005