Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..aprn17017d&link_type=abstract
American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As
Astronomy and Astrophysics
Astrophysics
Scientific paper
The oxygen-rich supernova remnant (SNR) 1E0102-72.3, the brightest SNR in the SMC, has been continually observed throughout the Chandra X-ray Observatory's mission as a calibration source for the Advanced CCD Imaging Spectrometer (ACIS). We have used the strong O, Ne, and Mg lines in the spectrum of 1E0102-72.3 to characterize the ACIS spectral response below 1.5 keV, compensating for the lack of strong lines in this energy range in the on-board calibration source. We have used the well-characterized spectrum of 1E0102-72.3 to determine and quantify any issues that exist in the gain and/or quantum efficiency with the CALDB 2.7 release of the S3 chip response matrix. In addition to this, we have used the high-resolution spectral data of 1E0102-72.3 taken from the High Energy Transmission Gratings to examine the quantum efficiency of the S3 CCD. We have also examined 1E0102-72.3 datasets on the I3 FI CCD to evaluate the CALDB 2.6 response matrices. This work was supported by NASA contract NAS8-39073.
DePasquale Joseph M.
Edgar Richard J.
Plucinsky Paul P.
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