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| Paper: |
Testing Photometric Methods in the Euclid Testbed |
| Volume: |
485, Astronomical Data Analysis Software and Systems XXIII |
| Page: |
513 |
| Authors: |
Kümmel, M.; Mohr, J.; Desai, S.; Henderson, R.; Koppenhoefer, J.; Paech, K.; Wetzstein, M. |
| Abstract: |
The Euclid satellite will investigate the distance-redshift relationship
and the evolution of cosmic structures by measuring shapes and
redshifts of galaxies and clusters of galaxies. The various Euclid
experiments require very accurate object photometry in order to achieve
its science goals. Building upon our experience in the Dark Energy
Survey data management, we have developed the Euclid Testbed which
allows one to compare different methods for various data processing
steps such as object detection and object photometry. Our first target
is testing photometric methods that are based on measurements taken on
the ensemble of single images and not on co-added images. In this
contribution we present and discuss the structure of the Euclid
Testbed. We introduce our own single image photometry software FitPhot, and give a detailed comparison of its accuracy with other
photometric methods/software. |
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