Catalog Extraction in SZ Cluster Surveys: a matched filter approach
- Melin, J.-B.
- Bartlett, J.G.
- Delabrouille, J.
DOIAbstract
14 pages, 11 figures, submitted to A&AWe present a method based on matched multifrequency filters for extracting cluster catalogs from Sunyaev-Zel'dovich (SZ) surveys. We evaluate its performance in terms of completeness, contamination rate and photometric recovery for three representative types of SZ survey: a high resolution single frequency radio survey (AMI), a high resolution ground-based multiband survey (SPT), and the Planck all-sky survey. These surveys are not purely flux limited, and they loose completeness significantly before their point-source detection thresholds. Contamination remains relatively low at <5% (less than 30%) for a detection threshold set at S/N=5 (S/N=3). We identify photometric recovery as an important source o...
Add to ORKG