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[ascl:1312.011] A_phot: Photon Asymmetry

Photon asymmetry is a novel robust substructure statistic for X-ray cluster observations with only a few thousand counts; it exhibits better stability than power ratios and centroid shifts and has a smaller statistical uncertainty than competing substructure parameters, allowing for low levels of substructure to be measured with confidence. A_phot computes the photon asymmetry (A_phot) parameter for morphological classification of clusters and allows quantifying substructure in samples of distant clusters covering a wide range of observational signal-to-noise ratios. The python scripts are completely automatic and can be used to rapidly classify galaxy cluster morphology for large numbers of clusters without human intervention.

Code site:
https://github.com/ndaniyar/aphot
Described in:
https://ui.adsabs.harvard.edu/abs/2013ApJ...779..112N
Bibcode:
2013ascl.soft12011N

Views: 7212

ascl:1312.011
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