XTE 1118+480 Figure 3.

Figure 3. Light curve in unfiltered light (3500-9000 A) at 6 s time resolution with the MDM 1.3 m telescope. Violent variations are evident, and unresolved at this time resolution (the measurement error is only 0.02 mag/point). But the flickering power drops to essentially zero at lower frequency, which is why long integration times can average over dozens of flickers and achieve good signal-to-noise in this "noisiest star in the Universe".

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