Volume 342, Issue 2 pp. 345-354

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

Michele Cappellari

Corresponding Author

Michele Cappellari

Leiden Observatory, Postbus 9513, 2300 RA Leiden, the Netherlands

E-mail: [email protected]

†European Space Agency external fellow.

Search for more papers by this author
Yannick Copin

Yannick Copin

Leiden Observatory, Postbus 9513, 2300 RA Leiden, the Netherlands

Institut de physique nucléaire de Lyon, 69222 Villeurbanne, France

Search for more papers by this author
First published: 12 June 2003
Citations: 85

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 NGC 2273 from spectra obtained with the panoramic IFS SAURON.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.