Description of the figure (see also caption of Fig. 3 of Heindl et 
al., 1999): 
PCA and HEXTE count spectra for pulse phase 0.70-0.76.  
Also shown are the best fit model (histograms) with 3 CRSFs and the 
inferred incident spectrum (smooth curve).   
Middle: The ratio of the data to the best fit model. 
Bottom: The ratio of the data to a model fit with only 
two CRSFs. The residuals between 30-40 keV and the underprediction 
of the continuum above 40 keV emphasize the presence of the third 
line.