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Pulse Phase Resolved X-Ray Spectroscopy of Cen X-3


GIS Lightcurve

Figure 1. X-Ray lightcurve plotted against orbital phase. The pulsar is eclipsed by the companion between orbital phases 0.8 and 0.2.

Pulse arrival times and orbital parameters

Figure 2. Delays in pulse arrival times fitted to a sinusoid. Errors in orbital parameters are for 90% confidence in one interesting parameter.

Pulse profiles for orbital phases 0.73, 0.62, 0.51

Pulse profiles for orbital phases 
0.45, 0.29, 0.15

Figure 3. Orbital variation of pulse profile.

SIS0 Fast Mode Data

Figure 4. Pulse-phase averaged spectrum fitted to a model with narrow Gaussians at 6.4, 6.56, 6.67, and 6.93 keV.

Pulse arrival times and orbital parameters

Figure 5. Iron line intensities versus pulse phase.


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