In the vicinity of X-line, even electrons become demagnetized and diffuse, thus we call this region electron diffusion region.
In strongly asymmetric reconnection layers with negligible guide field, the energy deposition to electrons is found to primarily occur in the electron diffusion region where electrons are demagnetized and diffuse.
In the reconnection layers without guide field, it was found that the energy deposition to electrons primarily occurs through je⊥·E⊥ (where E⊥is the electric field perpendicular to the magnetic field and je is the electron current density) and is concentrated in the electron diffusion region where electrons are demagnetized and diffuse.
Figure 3 presents energy conversion to electrons in the electron diffusion region during magnetopause reconnection.
The diffusion region is nearly extinct again.
The kinetic structure of the same diffusion region, including higher frequency fluctuations, has been previously discussed11,21.
Figure 3a shows the approximate MMS trajectory through the electron diffusion region on the profile of JY.
Torbert, R. B. et al. Estimates of terms in Ohm's law during an encounter with an electron diffusion region.
Profiles of the magnetic field, electric field, and ion flow during the MMS crossing of the ion diffusion region are also shown in Fig. 5b d.
Chen, L.-J. L.-J., Hesse, M., WangBeS.ho, N. & Daughton, W. Electron energization and structure of the diffusion region during asymmetric reconnection.
Figure 5a shows the MMS trajectory in the ion diffusion region on the profile of the in-plane electrostatic potential from a PIC simulation22.
