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The transfer between electron bulk kinetic energy and thermal energy in collisionless magnetic reconnection
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10.1063/1.4811119
/content/aip/journal/pop/20/6/10.1063/1.4811119
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/6/10.1063/1.4811119

Figures

Image of FIG. 1.
FIG. 1.

Contours of the electron bulk kinetic energy density for the cases (a) at and (b) at . In the figure, the magnetic field lines are also plotted for reference. The electron bulk kinetic energy density is normalized by .

Image of FIG. 2.
FIG. 2.

Contours of the electron thermal energy density for the cases (a) at and (b) at . In the figure, the magnetic field lines are also plotted for reference. The electron bulk kinetic energy density is normalized by .

Image of FIG. 3.
FIG. 3.

Time evolutions of the right-hand-side terms of Eq. (3) integrated in the selected region denoted with red rectangles (in the vicinity of the X line) in Figs. 1 and 2 for the cases (a) and (b) , respectively. The green curve represents the electron bulk kinetic energy flux term , the red curve denotes the power density of the work done by the electric field , and the power density of the work done by the electron pressure gradient is described by the blue curve. The black curves are the sums of the three terms. All these terms are normalized by .

Image of FIG. 4.
FIG. 4.

Time evolutions of the right-hand-side terms of Eq. (4) integrated in the selected region denoted by red rectangles (in the vicinity of the X line) in Figs. 1 and 2 for the cases (a) and (b) . The green, blue, and red curves represent the electron enthalpy flux term , the electron heat flux term , and the thermal energy source term , respectively. The black curves are the sums of the three terms. All these terms are normalized by .

Image of FIG. 5.
FIG. 5.

Time evolutions of the right-hand-side terms of Eq. (4) integrated in the selected region denoted by black rectangles (in the magnetic island) in Fig. 2 for the cases (a) and (b) . The green, blue, and red curves represent the electron enthalpy flux term , the electron heat flux term , and the thermal energy source term , respectively. The black curves are the sums of the three terms. All these terms are normalized by .

Tables

Generic image for table
Table I.

The difference in the ion and electron kinetic energy in magnetic reconnection. denotes the ion kinetic energy (it includes the ion bulk kinetic energy and ion thermal energy), and denotes the electron kinetic energy (it includes the electron bulk kinetic energy and electron thermal energy). The electron bulk kinetic energy is denoted by , and the electron thermal energy is denoted by . “D” means the energy difference, which is calculated by subtracting the energy, when the reconnection attains its maximum rate, to its initial value. The energy is integrated over the entire simulation domain, and it is normalized by . An approximate conservation of the total energy is kept in our simulation models, and the percentage of energy non-conservation is within 0.4%.

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/content/aip/journal/pop/20/6/10.1063/1.4811119
2013-06-14
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The transfer between electron bulk kinetic energy and thermal energy in collisionless magnetic reconnection
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/6/10.1063/1.4811119
10.1063/1.4811119
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