Trend of photospheric magnetic helicity flux in active regions generating halo coronal mass ejections

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Table 2:

Characteristics of the active regions, halo CMEs and analyzed relevant eruptive events.
NOAA	Latitude	Event	TMF^a	HC^b	TC^c	$\Delta H_{+}$	$\Delta H_{-}$
	degrees	class				10⁴² Mx²	10⁴² Mx²
8858	+ 27	C7.3	slightly decreasing	yes	after	0.1	1.2
8948	- 15	M3.1	slightly increasing	no	-	1.8	0.3
9114+9115	+ 12	C2.3-ERU	slightly increasing	yes	before	0	7
9393+9394	+ 20	X1.7	increasing (positive)	yes (small)	before	1	8.5
9415	- 22	X2.3	constant	yes (great)	before and after	1.7	0.7
10030	+ 18	X3.0	increasing	yes	before	5	7
10030	+ 18	ERU	increasing	yes (great)	after	5	7
10069+10077	- 8	M5.2-ERU	increasing	yes (great)	after	4	4.3
10162	+ 25	ERU	constant	yes (small)	before	9	0
10229	+ 15	M2.7	decreasing	no	-	0.2	3.5
10365	- 6	M1.6	increasing	no	-	4.5	0.5
10365	- 6	X1.3	constant	yes	after	4.5	0.5

Notes. ^(a) TMF: trend of the magnetic flux. ^(b) HC: Helicity change (slope of the curve). ^(c) TC: Time of change relative to the CME occurrence.

Source LaTeX | All tables | In the text

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