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Dynamical evolution of titanium, strontium, and yttrium spots on the surface of the HgMn star HD11753

Briquet, M.; Korhonen, H.; Gonzalez, Jorge Federico; Hubrig, S.; Hackman, T. (EDP Sciences, 2010-02)

Aims: We gathered about 100 high-resolution spectra of three typical HgMn (mercury-manganese) stars, HD11753, HD53244, and HD221507, to search for slowly pulsating B-like pulsations and surface inhomogeneous distribution ...