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Application of the Voronoi tessellation technique for galaxy cluster search in the Münster Red Sky Survey

Published online by Cambridge University Press:  06 October 2004

E. Panko  and
P. Flin
E. Panko
Affiliation:
Astronomical Observatory of the Nikolaev State University, Nikolaev, Ukraine
P. Flin
Affiliation:
Institute of Physics, Pedagogical University, Kielce, Poland
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Abstract

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We present the preliminary result of our project, consisting in studying the properties of a large sample of galaxy clusters. The Münster Red Sky Survey, which is a large galaxy catalogue covering an area of about 5000 square degrees on the southern hemisphere, serves as our observational basis. It is complete up to $r_F=18^m.3$. Creation of a cluster catalogue is the first step of our investigation. We propose to use the 2D Voronoi tessellation technique for identifying galaxy clusters in this 2D catalogue. Points with high values of the inverse Voronoi tessel area will be regarded as galaxy cluster centroids. We show that this approach works correctly.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUC195 , March 2004 , pp. 245 - 247
Copyright
© 2004 International Astronomical Union