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Table 1

Basic information about the selected long-duration flares.

Flare Date Location SXR flux maximum3 Duration3 Time intervals analysed
active region1 coordinates2 time [UT] class [h] beginning [UT] (duration [min])

LDE1 30 July 2005 10 792 N10E59 06:36 X1.3 11 10:20 (0.07), 11:30 (0.13),
11:55 (0.13), 12:40 (0.27),
13:34 (0.53), 14:15 (1.00),
15:55 (4.00), 16:26 (4.33)
LDE2 22 August 2005 10 798 S10W52 01:34 M2.7 11 01:35 (0.13), 01:55 (0.27),
02:45 (2.00), 03:24 (1.00),
04:22 (1.00), 04:46 (4.00),
05:56 (8.00), 06:36 (2.00),
07:29 (2.00), 08:08 (2.00)
LDE3 25 January 2007 10 940 S07E90 07:15 C6.3 17 07:03 (1.50), 07:55 (0.13),
08:12 (0.33), 08:32 (0.50),
09:30 (1.50), 09:50 (1.50),
10:10 (1.50), 11:00 (2.50),
11:22 (3.00), 11:47 (4.00),
12:30 (4.00), 12:56 (4.00)

Notes. 

(1)

NOAA active region number;

(2)

heliographic coordinates;

(3)

according to GOES 1 − 8 Å database.

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