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CCD photometric search for peculiar stars in open clusters. VII. Berkeley11, Berkely 94, Haffner 15, Lyngå 1, NGC 6031, NGC 6405, NGC 6834 and Ruprecht 130
(EDP Sciences, 2003-12)
We have investigated 1008 objects in the area of five intermediate age open clusters (NGC 2099, NGC 3114, NGC 6204, NGC 6705 and NGC 6756) via the narrow band δa-system. The detection limit for photometric peculiarity is ...