Table 1 EDR events list

From: Electromagnetic viscosity supported anomalous electric field in the electron diffusion region of collisionless magnetic reconnection

No.

Time begin (UT)

Time end (UT)

Frequency range (Hz)

RM,max (mV/m)

<E’ > M,max (mV/m)

P = RM,max/<E’ > M,max*100%

Bg

1

2017-06-05 17:20:02.00

17:20:10.00

1–16

0.033

0.34

10%

0.40

2

2017-06-17 20:24:06.00

20:24:09.00

1–16

0.023

0.68

3%

0.04

3

2017-07-03 05:26:49.00

05:26:52.00

1.5–16

0.161

1.95

8%

0.10

4

2017-07-03 05:27:06.00

05:27:09.00

2–16

0.127

1.68

8%

0.21

5

2017-07-26 00:04:18.00

00:04:21.00

2–16

0.058

4.83

1%

0.17

6

2018-08-27 11:41:22.00

11:41:29.00

2–16

0.125

3.84

3%

0.13

7

2018-08-27 12:15:40.00

12:15:45.00

1–16

0.371

2.06

18%

0.05

8

2020-08-03 00:35:53.00

00:35:57.00

2–16

0.049

1.74

3%

0.10

9

2020-08-03 00:35:38.00

00:35:44.00

2–16

0.022

1.46

2%

0.33

10

2017-07-11 22:34:01.00

22:34:07.00

0.8–16

0.036

2.56

1%

0.05

11

2017-08-01 11:26:24.00

11:26:29.00

1.5–16

0.014

1.20

1%

0.03

12

2017-08-10 12:18:30.00

12:18:37.00

1–16

0.050

2.37

2%

0.45

13

2018-08-21 11:01:03.00

11:01:06.00

2–16

0.029

1.54

2%

0.14

  1. Columns 2 and 3 list the beginning and end times of EDRs (see Methods section). Column 4 lists the frequency ranges of EM fluctuations in each event used in this work. The lower frequency limit of each event is determined by the E or B spectra as shown in Fig. 1e, g, while the top usable frequency of ~16 Hz is the Nyquist frequency of electron measuring precision 30 ms (~33 Hz). Although sometimes EM fluctuations could extend to higher frequencies, the fluctuations with frequency less than 16 Hz dominate the energy conversion and anomalous effects. Column 5 shows the maximum values of the total anomalous electric field along the M direction within the EDRs, RM = (D + TES + TEM)M. Column 6 shows the maximum values of the non-ideal electric field along the +M direction <E’ > M,max, e.g., the reconnection electric field within the EDR. Column 7 shows the contribution of the anomalous electric field to the reconnection electric field, which is the ratio of RM,max and <E’ > M,max. The non-ideal electric field <E’> is estimated by low-pass filtered multiple spacecraft average electric field <E > , electron bulk velocity <Ve > , and magnetic field <B > , i.e, \({ < {{\bf{E}}}}^{{\prime} } > = < {{\bf{E}}} > + < {{{\bf{V}}}}_{{{\bf{e}}}} > \times < {{\bf{B}}} > \), where the low-pass frequency is the lower frequency limit of each EDR event53. Column 8 shows the normalized guide field Bg of each reconnection event.
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