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Cited by 512

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ANN z: Estimating Photometric Redshifts Using Artificial Neural Networks

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Collister, Adrian A., Lahav, Ofer·2004·Publications of the Astronomical Society of the Pacific

Abstract

We introduce ANN z , a freely available software package for photometric redshift estimation using artificial neural networks. ANN z learns the relation between photometry and redshift from an appropriate training set of galaxies for which the redshift is already known. Where a large and representative training set is available, ANN z is a highly competitive tool when compared with traditional template‐fitting methods. The ANN z package is demonstrated on the Sloan Digital Sky Survey Data Release 1, and for this particular data set the rms redshift error in the range 0≲z≲0.7 is σ rms = 0.023. Nonideal conditions (spectroscopic sets that are small or brighter than the photometric set for which redshifts are required) are simulated, and the impact on the photometric redshift accuracy is assessed. 2

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Metadata

Authors
Collister, A. A., & Lahav, O.
Venue
Publications of the Astronomical Society of the Pacific
Published
2004-04
Volume
116
Issue
818
Pages
345-351
ISSN
  • 0004-6280 (ISSN-L)
  • 1538-3873
OpenAlex
W2152876174
Cited by
512
References
19
FWCI
8.47
Type
journal article
Language
en
Open access
bronze

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Collister, A. A., & Lahav, O. (2004). ANN z: Estimating Photometric Redshifts Using Artificial Neural Networks. Publications of the Astronomical Society of the Pacific. https://doi.org/10.1086/383254

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