Calibration of the <i>Rossi X‐Ray Timing Explorer</i> Proportional Counter Array
Calibration of the <i>Rossi X‐Ray Timing Explorer</i> Proportional Counter Array
We present the calibration and background model for the Proportional Counter Array on board the Rossi X-Ray Timing Explorer. The energy calibration is systematics-limited below 10 keV, with deviations from a power-law fit to the Crab Nebula plus pulsar of less than 1%. Unmodeled variations in the instrumental background amount …