With data from the Atmospheric Imaging Assembly and the Helioseismic and Magnetic Imager onboard the Solar Dynamics Observatory,we present a magnetic interactio
Two primary solar-activity indicators sunspot numbers(SNs)and sunspot areas(SAs)in the time interval from November 1874 to December 2012 are used to determine t
The South Galactic Cap u-band Sky Survey(SCUSS) was established in 2009 in order to provide a photometric input catalog for target selection of the Large Sky Ar
We describe the current plans for a spectroscopic survey of millions of stars in the Milky Way galaxy using the Guo Shou Jing Telescope (GSJT, formerly called t