Swift J1858.6-0814 with ULTRACAM on 2018 Nov 9
SUMMARY: Source shows two classes of
variability; Sporadic, rapid, red flares and longer, blue
oscillations. These characteristics resemble V404 Cyg.
Figure 1: A segment of the simultaneous ULTRACAM lightcurves, sampled
at a best cycle time of 0.92 s. Representative error bars are shown to the left.
The dashed- and dotted lines demarcate the times for the zoomed-in segments in Figures 2 and 3 respectively (below).
Figure 2: Zoom-in on a fast, red flare early in the observation.
Lightcurves have been normalised to better show the colour.
Figure 3: Zoom-in on a longer, blue flare towards the middle of the observation. Lightcurves have been normalised to highlight the colour.