Journal Article

Convolution- and deconvolution-based estimates of galaxy scaling relations from photometric redshift surveys

Ravi K. Sheth and Graziano Rossi

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 403, issue 4, pages 2137-2142
Published in print April 2010 | ISSN: 0035-8711
Published online April 2010 | e-ISSN: 1365-2966 | DOI: https://dx.doi.org/10.1111/j.1365-2966.2010.16258.x
Convolution- and deconvolution-based estimates of galaxy scaling relations from photometric redshift surveys

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In addition to the maximum likelihood approach, there are two other methods that are commonly used to reconstruct the true redshift distribution from photometric redshift data sets: one uses a deconvolution method, and the other a convolution. We show how these two techniques are related, and how this relationship can be extended to include the study of galaxy scaling relations in photometric data sets. We then show what additional information photometric redshift algorithms must output so that they too can be used to study galaxy scaling relations, rather than just redshift distributions. We also argue that the convolution-based approach may permit a more efficient selection of the objects for which calibration spectra are required.

Keywords: methods: analytical; methods: statistical; galaxies: formation; cosmology: observations

Journal Article.  3250 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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