articleMonthly Notices of the Royal Astronomical SocietyJun 12, 2003BRONZE OA

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

MCM. CappellariYCY. Copin

Leiden University · Leiden Observatory · +1 more institution

Indexed inarxivcrossrefdoaj

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.

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Authors

2
  • MC
    M. CappellariCorresponding

    Leiden University, Leiden Observatory

  • YC
    Y. Copin

    Leiden Observatory, Institute of Nuclear Physics of Lyon, Leiden University

Topics & keywords

Topics
Keywords
  • Voronoi diagram
  • Galaxy
  • Kinematics
  • Spectral line
  • Constant (computer programming)
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