Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21914508r&link_type=abstract
American Astronomical Society, AAS Meeting #219, #145.08
Astronomy and Astrophysics
Astronomy
Scientific paper
AstroDrizzle is an improved STScI software tool for combining dithered HST images and removing geometric distortion. We present the results using AstroDrizzle to combine data taken from multiple detectors over several epochs, including WFC3 in both the UVIS and IR channels and early epoch ACS/WFC images. Using the spiral galaxy "NGC 3370" as an example, we will show improvements to the standard pipeline products that are achievable by optimizing the image combination when observations are obtained with sub-pixel dithering. We will compare these products with those created using the earlier generation software MultiDrizzle. As a part of our final product we will make the test data available, along with a cookbook detailing the process in a methodical manner, allowing users to reproduce the multi-channel optimally combined products using the new software.
Bushouse Howard
Dulude Michael
F. C. 3 Team W.
Mack Jennifer
Petro Larry
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