2002 Chandra Calibration Workshop  

X1543-62

 

This example concerns the HETGS observation (obsid_702) of X1543-62 by Lorella Angelini from September 2000.

The first figure shows the application of the standard flux-correction technique. Note that from about 6 to 13 Angstroms, the flux-corrected MEG plus and minus first orders are systematically lower than the flux-corrected HEG orders.

Figure showing result of standard technique

While one might attribute this the systematic differences as a calibration issue, the next figure, which is the result of the pileup model, shows that this difference is most likely due to pileup.

Figure showing result of standard technique

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This page was last updated Dec 16, 2002 by John E. Davis. To comment on it or the material presented here, send email to davis (at) space.mit.edu.
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