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Angular Correlation Function Estimators Accounting for Contamination from Probabilistic Distance Measurements

  • Authors: Humna Awan and Eric Gawiser

2020 The Astrophysical Journal 890 78.

  • Provider: AAS Journals

Caption: Figure 5.

Correlation functions estimates and the estimator variance in the toy galaxy sample with only two redshift bins (presented in Section 5.1). We see that just as Decontamination (red) recovers the truth (green) using the correlations on the contaminated subsamples (blue), the Decontaminated Weighted estimator (black) recovers the truth from the Weighted correlations on the entire observed sample (magenta), without needing to divide the observed sample into subsamples. We also note that the decontaminated estimators reduce the variance on the CF estimates, as indicated by the error bars here.

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