Light curves of the 2 h Per candidate members with the shortest photometric periods are shown in the top panels (red: CFHT, black: Maidanak), their frequency spectrum in the middle panels (black: periodogram, red: CLEAN DFT), and their phased light curves in the bottom panels (red: CFHT, black: Maidanak). Left: HPer-215 with a period of 0.06626 d; Right: HPer-513 with a period of 0.09827 d.
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