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arXiv · astro-ph/0607302

Bayesian Photometric Redshifts for Weak Lensing Applications

Edward Edmondson·Lance Miller·Christian Wolf
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Abstract

The next generation of weak gravitational lensing surveys is capable of generating good measurements of cosmological parameters, provided that, amongst other requirements, adequate redshift information is available for the background galaxies that are measured. It is frequently assumed that photometric redshift techniques provide the means to achieve this. Here we compare Bayesian and frequentist approaches to photometric redshift estimation, particularly at faint magnitudes. We identify and discuss the biases that are inherent in the various methods, and describe an optimum Bayesian method for extracting redshift distributions from photometric data.

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Edward Edmondson, Lance Miller, Christian Wolf. 2006-07-23. Bayesian Photometric Redshifts for Weak Lensing Applications. https://doi.org/10.1111/j.1365-2966.2006.10799.x

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