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Dark Energy Survey Year 1 results: Cross-correlation redshifts - methods and systematics characterization

Gatti, M.; Vielzeuf, P.; Davis, C.; Cawthon, R.; Rau, M. M.; DeRose, J.; De Vicente, J.; Alarcon, A.; Rozo, E.; Gaztanaga, E.; Moller, Anais; Sommer, Natalia; Yuan, Fang; Zhang, Bonnie; Tucker, Bradley

Description

We use numerical simulations to characterize the performance of a clustering-based method to calibrate photometric redshift biases. In particular, we cross-correlate the weak lensing source galaxies from the Dark Energy Survey Year 1 sample with redMaGiC galaxies (luminous red galaxies with secure photometric redshifts) to estimate the redshift distribution of the former sample. The recovered redshift distributions are used to calibrate the photometric redshift bias of standard photo-z methods...[Show more]

CollectionsANU Research Publications
Date published: 2018-02-22
Type: Journal article
URI: http://hdl.handle.net/1885/196621
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/sty466
Access Rights: Open Access

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