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science simulated light curves and power spectra (periodograms) obtained with ULTRACAM on the WHT and SALT
science source is an R=16 variable star observed during bright time in 1" seeing using 0.005 s exposures
science source varies with amplitude 2.5% and period 0.04 s
science light-curves are of limited use when acquiring data at the highest rates - power spectra prove to be the most useful tools
science the advantages of using large-aperture telescopes are clearly apparent - the 25 Hz peak is absent in WHT data but prominent in SALT data