Automated Morphometry with SExtractor and PSFEx

Details Automated Morphometry with SExtractor and PSFEx Automated Morphometry with SExtractor and PSFEx

Jul 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aspc..442..435b&link_type=abstract

Astronomical Data Analysis Software and Systems XX. ASP Conference Proceedings, Vol. 442, proceedings of a Conference held at Se

Astronomy and Astrophysics

Astronomy

1

Scientific paper

Variable blurring of astronomical images by seeing and the instrumental Point Spread Function (PSF) makes it challenging to obtain accurate photometric and morphometric measurements under changing observing conditions. I show how the new PSFEx PSF modeling software and the latest version of the SExtractor source extraction tool can be combined to perform fully automated, PSF-corrected source measurements. An implementation of these techniques in the Dark Energy Survey Data Management (DESDM) pipeline is presented.

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