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Title:
Adaptive spatial binning of integral-field spectroscopic data using Voronoi tessellations
Authors:
Cappellari, Michele; Copin, Yannick
Affiliation:
AA(Leiden Observatory, Postbus 9513, 2300 RA Leiden, the Netherlands), AB(Leiden Observatory, Postbus 9513, 2300 RA Leiden, the Netherlands; Institut de physique nucléaire de Lyon, 69222 Villeurbanne, France)
Publication:
Monthly Notice of the Royal Astronomical Society, Volume 342, Issue 2, pp. 345-354. (MNRAS Homepage)
Publication Date:
06/2003
Origin:
MNRAS
MNRAS Keywords:
methods: data analysis, techniques: photometric, techniques: spectroscopic
DOI:
10.1046/j.1365-8711.2003.06541.x
Bibliographic Code:
2003MNRAS.342..345C

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.

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