Millisecond Quas-Periodic Signals from Low Mass X-ray Binaries—Recent Advance

Recent study of the kilohertz quasi-periodic oscillations (QPOs)in Low Mass X-ray Binaries (LMXBs)indicates that the radiation force,other than the magnetosphere and disk interaction and the general relativity (GR)effect setting the inner disk edge,serves as the disk truncation mechanism on shorter time scales.Some results and discussions are presented in this paper.