Adaptive spatial binning of integral-field spectroscopic data using Voronoi tessellations
Astrophysics
2009-07-09 v1
Abstract
We present new techniques to perform adaptive spatial binning of Integral-Field Spectroscopic (IFS) data to reach a chosen constant signal-to-noise ratio per bin. These methods are required for the proper analysis of IFS observations, but can also be used for standard photometric imagery or any other two-dimensional data. Various schemes are tested and compared by binning and extracting the stellar kinematics of the Sa galaxy NGC2273 from spectra obtained with the panoramic IFS SAURON.
Cite
@article{arxiv.astro-ph/0302262,
title = {Adaptive spatial binning of integral-field spectroscopic data using Voronoi tessellations},
author = {Michele Cappellari and Yannick Copin},
journal= {arXiv preprint arXiv:astro-ph/0302262},
year = {2009}
}
Comments
11 pages, 11 figures, LaTeX, to be published in MNRAS; software implementing the methods described in this paper is available at http://www.strw.leidenuniv.nl/~mcappell/idl/