Electron density isosurfaces for at four different times. Plasmoids appear as high density tubes merging and kinking.
Electron density contour-plot at at time . The plot shows the formation a main reconnection site approximately at the center of contour-plot.
Contour-plot of Bz magnetic field component on the plane at time . The dashed line boxes enclose Hall magnetic field structures defining reconnection regions. It is clear that some reconnection regions are enclosed in larger reconnection areas, leading to a hierarchical structure of the plasmoid-dominated current sheet.
Quiver plot of electron (blue color) and ion (red color) currents superimposed to the electron density iso-surface (grey color) for in panel (a). In panel (b), the intensity of the ion current is multiplied by 700 to show the direction of the ion current. The magnetic field loops are supported by an electron current along the z direction, while the ion current (approximately 700 times smaller) develops on the x–y plane to support the Hall magnetic field.
Magnetic field lines in grey color superimposed to the electron density iso-surface in blue color at time . The magnetic field loops surround the plasmoids.
Contour-plot of the x component of the electron fluid velocity component on the plane at time . The white dashed line boxes surround the previously identified reconnection regions, while the red dashed line boxes enclose the two electron jets regions.
Electron density isosurfaces for at four different times. Plasmoids appear has high density tubes merging and kinking as in the antiparallel set-up; but in addition, the plasmoid tubes twist also.
Magnetic field lines at time .
A blow-up of the region enclosing a flux rope, showing the magnetic field lines, superimposed to electron density isosurfaces in red color.
Magnetic field lines and contourplot of on the plane at time in panel (a). A contour-plot of on the plane. The core field has approximately the same strength and the same direction of the guide field for all the plasmoids.
Contour-plot of the x component of the electron fluid velocity component on the plane at time .
Contour-plot of the electric field component parallel to the local magnetic field (parallel electric field ) on the z = 0 plane at time .
Electron distribution functions at time computed for (red line) and (blue line). The electron beam visible in the electron distribution function in the region at , relaxes to a plateau in the region .
Phase space at time in the region of space with superimposed parallel electric field profile along the line in black color. The color table ranges from a low electron distribution function (blue for no electrons) to high distribution function (red). The binning used in the velocity and spatial directions are indicated with a red box in the bottom left corner.
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