A disk-corona model for fitting the low/hard(LH)state of the associated steady jet in black hole X-ray binaries(BHXBs)is proposed based on the large-scale magne
We report the discovery of Balmer broad absorption lines (BALs) in the quasar LBQS 1206+1052 and present a detailed analysis of the peculiar absorption line spe
A systematic study of RR Lyrae stars is performed using a selected sample of 655 objects in the Large Magellanic Cloud (LMC) with long-term observations and num
Orbital correlation of space objects is one of the most important elements in space object identification. Using the orbital elements, we provide correlation cr