Adaptive spatial binning of integral-field spectroscopic data using Voronoi tessellations

Details Adaptive spatial binning of integral-field spectroscopic data using Voronoi tessellations Adaptive spatial binning of integral-field spectroscopic data using Voronoi tessellations

2003-02-13

arxiv.org/abs/astro-ph/0302262v1

Mon.Not.Roy.Astron.Soc.342:345,2003

Astronomy and Astrophysics

Astrophysics

11 pages, 11 figures, LaTeX, to be published in MNRAS; software implementing the methods described in this paper is available

Scientific paper

10.1046/j.1365-8711.2003.06541.x

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.

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