High duty-cycle time-series photometric observations in multiple colors for asteroseismology from Dome A, Antarctica

High duty-cycle time-series photometric observations in multiple colors are very important for asteroseismology, since the behaviors of the pulsating stars in different colors are helpful to make mode identifications. However, the space missions including CoRot and Kepler are not able to provide light curves in multiple colors simultaneously.        In this colloquium, I shall introduce our efforts in this direction with the data collected from Dome A of Antarctica. The light curves in SDSS g and r for HD 92277 observed with CSTAR in 2009 help to not only discovering the star as a new δ Scuti star with detection of multiple frequencies of pulsation but also identifying the mode of the dominant frequency. The observations with CSTAR are also used to analyze the pulsations of 4 RR Lyrae stars, including getting the properties of the Blazhko effect of 3 of them. Observations in SDSS i for an eclipsing binary with the AST3-1 in 2012 are combined with the data in Johnson I obtained with OGLE survey in 2006 to get the photometric solution of the binary system and detect the activities of spots on the surface of a component.