supported in part by the National Natural Science Foundation of China (Grant Nos. 0773023,10833002 and 11073043);the One Hundred Talents project of the Chinese Academy of Sciences;the Shanghai Pujiang Program (08PJ14111);the National Basic Research Program of China (973project 2009CB824800);the grant for concept study of space science from the Chinese Academy of Science;the starting funds at the Shanghai Astronomical Observatory
We have studied X-ray spectral state transitions that can be seen in the long- term monitoring light curves of bright X-ray binaries from the All-Sky Monitor (ASM) onboard the Rossi X-ray Timing Explorer (RXTE) an...
supported by the National Natural Science Foundation of China (Grant Nos. 10773023 and 10833002);the One Hundred Talents Project of the Chinese Academy of Sciences,the Shanghai Pujiang Program (Grant No. 08PJ14111);the National Basic Research Program of China (Grant No. 2009CB824800);the Starting Funds at the Shanghai Astro-nomical Observatory
We have analyzed the observations of SGR 1806-20 and SGR 1900+14 during giant flares made with the Rossi X-ray Timing Explorer.We have studied the pulsating tail after the initial spike and decomposed the pulse wavefo...
supported by the National Natural Science Foundation of China (Grant Nos. 10773023,10833002,10773004,and 10603002);the One Hundred Talents Project of the Chinese Academy of Sciences,the Shanghai Pujiang Program (Grant No. 08PJ14111);the National Basic Research Program of China (Grant No. 2009CB824800);the Starting Funds at the Shanghai Astronomical Observatory
Optical observations of Sco X-1 with exposure times around 0.5 s were performed with the 1.56 m telescope of the Shanghai Astronomical Observatory in 2008.With these observations,we studied the fluctuation of the opti...
supported by the National Natural Science Foundation of China (Grant Nos. 10773023 and 10833002);the One Hundred Talents project of the Chinese Academy of Sciences,the Shanghai Pujiang Program (Grant No. 08PJ14111);the National Basic Research Program of China (Grant No. 2009CB824800);the Starting Funds at the Shanghai Astronomical Observatory
Using observations in the past four years with the All Sky Monitor(ASM) onboard the Rossi X-ray Timing Explorer(RXTE) and the Burst Alert Telescope(BAT) onboard the Swift,we demonstrate that the hard state and the sof...
supported by the National Natural Science Foundation of China (Grant Nos. 10533020,10773023,and 10833002);the One Hundred Talents project of the Chinese Academy of Sciences,the Shanghai Pujiang Program (Grant No. 08PJ14111);the National Basic Research Program of China (Grant No. 2009CB824800);the Starting Funds at the Shanghai Astronomical Observatory
Recent studies of black hole and neutron star low mass X-ray binaries(LMXBs) show a positive correlation between the X-ray flux at which the low/hard(LH)-to-high/soft(HS) state transition occurs and the peak flux of t...