302 citations · 1.7k across the 43 of their papers we have counts for
Showing 1999 · astro-phShow all
2 papers · 2 filters
astro-ph1999
Phase Lags of QPOs in Microquasar GRS 1915+105
Wei Cui
I report the discovery of hard X-ray phase lags associated with the famous 67 Hz quasi-periodic oscillation (QPO) in microquasar GRS 1915+105. The QPO is seen on multiple occasions…
astro-ph1999
X-ray Orbital Modulation of Cygnus X-1
Linqing Wen, Wei Cui, Alan M. Levine +1
We have analyzed over 2 years of RXTE/ASM data for Cygnus X-1. We have detected the 5.6-day orbital period in Lomb-Scargle periodograms of both light curves and hardness ratios whe…