91 citations · 135 across the 4 of their papers we have counts for
8 papers · 1 filter
A model for the waveform behavior of accreting millisecond pulsars: Nearly aligned magnetic fields and moving emission regions
Frederick K. Lamb, Stratos Boutloukos, Sandor Van Wassenhove +5
We investigate further a model of the accreting millisecond X-ray pulsars we proposed earlier. In this model, the X-ray-emitting regions of these pulsars are near their spin axes b…
Coupling between the 45 Hz Horizontal-Branch Oscillation and the Normal Branch Oscillation in Scorpius X-1
Wenfei Yu
The observations of the bright persistent neutron star low-mass X-ray binary (LMXB) Sco X-1 performed with the {\it Rossi X-ray Timing Explorer} (RXTE) show a 6 Hz normal-br…
A Hard-to-Soft State Transition during A Luminosity Decline of Aquila X-1
Wenfei Yu, Joshua Dolence
We have discovered a spectral transition from the low/hard (LH) state to the high/soft (HS) state when Aquila X-1 was {\em declining} in observations made with the {\it Rossi X-Ray…
Spin Rates and Magnetic Fields of Millisecond Pulsars
Frederick K. Lamb, Wenfei Yu
Observations made using the Rossi X-ray Timing Explorer have shown that accreting weak-field neutron stars in low-mass X-ray binary systems (LMXBs) produce three distinct types of…
Correlation between Hard X-ray Peak Flux and Soft X-ray Peak Flux in the Outburst Rise of Low Mass X-ray Binaries
Wenfei Yu, Michiel van der Klis, Rob Fender
We have analyzed {\it Rossi} X-ray timing explorer (RXTE) pointed observations of the outbursts of black hole and neutron star soft X-ray transients in which an initial low/hard st…
Hard X-ray Flares Preceding Soft X-ray Outbursts in Aquila X-1: A Link between Neutron Star and Black Hole State Transitions
Wenfei Yu, Marc Klein-Wolt, Rob Fender +1
We have analyzed {\it Rossi X-ray Timing Explorer} (RXTE) data of the neutron star transient Aquila X-1 obtained during its outbursts in May/June 1999 and September/October 2000. W…