Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000head....5.2702f&link_type=abstract
American Astronomical Society, HEAD Meeting #5, #27.02; Bulletin of the American Astronomical Society, Vol. 32, p.1227
Astronomy and Astrophysics
Astronomy
Scientific paper
The Advanced CCD Imaging Spectrometer (ACIS) on board the Chandra X-ray Observatory provides excellent spectrally-resolved high-resolution images. However, quantitative data analysis can be quite complex due to a variety of instrumental and environmental effects. As members of the ACIS instrument team, we outline here some techniques to address issues such as: correction of charge transfer inefficiency; removal of low-quality events and flaring pixels; aligning multi-epoch images and exposure maps; determining exposure times; creating merged full-array exposure maps and exposure-corrected smoothed images; applying wavelet detection algorithm to a full array; evaluating the efficacy of wavdetect; achieving subarcsecond absolute astrometry; and two-dimensional modeling of subimages. This work is funded by NAS8-38252.
Broos Patrick
Chartas George
Feigelson Eric D.
Koch S. K.
Maeda Yoshiaki
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