All Tables

Table 1: List of WLFs indicating start times, flare location, GOES class, H $\alpha$ classification, number of WLF kernels observed, WLF kernel location within the flare site, maximum WLF contrast relative to the pre-flare brightness in the flare location over the 4308 Å band, active region and sunspot class and corrected area as defined by Solar Geophysical Data, and whether or not a corresponding Type II or Type III radio burst was also observed in association with the event. ^a - magnetic classification of the active region is as given in Solar Geophysical Data: A= $\alpha$ , unipolar region; B = $\beta$ , a bipolar group with a balance between the preceding and following spots; G = $\gamma$ , a group in which polarities are completely mixed; BP = $\beta * p$ , bipolar group where the preceding spots dominate; D = $\delta$ , spots of opposite polarity within 2.5 $^{\circ }$ of one another and in the same penumbra; ^b - in millionths of a solar hemisphere; ^c - boundary between the penumbra and photosphere; ^d - boundary between the penumbra and umbra; ^e - for this event we have no pre-flare image of the active region in NaBan data and the flare ended in a data gap so that we were unable to determine a reliable value for the contrast in this case; ^f - the flare was at the limb making location determination unreliable. ^g - for this event we list two values of peak contrast based on two WLF kernels quite separate in time.
Table 2: List of non-WLFs which form our comparison group, giving date, start time, location, GOES class, H $\alpha$ classification, active region class and corrected area from Solar Geophysical Data, and whether a Type II or Type III radio burst was observed in association with this event. ^a - active region class is as defined in Table 1; ^b - millionths of a solar hemisphere.
Table 3: Mean values and standard deviations of the M2/M1 ratio (33-53/23-33 keV), electron beam power above 20 keV and coronal pressure for both non-WLFs and WLFs.
Table 4: Average properties of the WLF and non-WLF samples. ^a From Solar Geophysical Data in millionths of a solar hemisphere; ^b Active region class was calculated by assigning values to the different classifications as follows: BGD/BD = 4; BG/BP = 3; B = 2 and A = 1.
Table 5: Mean values and standard deviations of M2/M1, electron beam power above 20 keV and coronal pressure for both non-WLFs and WLFs in the overlap regions of GOES class C7.8 - M7.4.