Calibration and software as current in the last month or two
- The calibration and software are moving quantities which are improving with time, i.e., in the last 8 months these results
have changed for the better.
Fudge for the ACIS-S3 fits: a carbon Kalpha edge of optical depth 1.0 has been added which improves the fits
There are sensitivities to the energy range, background selection,
spectral model, which data are being fit, what parameters are being fit simultaneously, etc.
ACIS results are for the S3 CCD only.