Adaptive spatial binning of integral-field spectroscopic data using Voronoi tessellations
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.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- June 2003
- DOI:
- 10.1046/j.1365-8711.2003.06541.x
- arXiv:
- arXiv:astro-ph/0302262
- Bibcode:
- 2003MNRAS.342..345C
- Keywords:
-
- methods: data analysis;
- techniques: photometric;
- techniques: spectroscopic;
- Astrophysics
- E-Print:
- 11 pages, 11 figures, LaTeX, to be published in MNRAS