Adaptive density estimator for galaxy surveys release_supybamjbfflzfi3og32fikfrq

by Enn Saar

Published in Proceedings of the International Astronomical Union by Cambridge University Press (CUP).

2014   Volume 11, Issue S308, p242-247

Abstract

<jats:title>Abstract</jats:title> Galaxy number or luminosity density serves as a basis for many structure classification algorithms. Several methods are used to estimate this density. Among them kernel methods have probably the best statistical properties and allow also to estimate the local sample errors of the estimate. We introduce a kernel density estimator with an adaptive data-driven anisotropic kernel, describe its properties and demonstrate the wealth of additional information it gives us about the local properties of the galaxy distribution.
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