Shape Statistics of Sloan Digital Survey superclusters

Details Shape Statistics of Sloan Digital Survey superclusters Shape Statistics of Sloan Digital Survey superclusters

2003-02-28

arxiv.org/abs/astro-ph/0302596v2

Astronomy and Astrophysics

Astrophysics

6 pages, 6 figures, accepted for publication in the MNRAS, (minor changes)

Scientific paper

10.1046/j.1365-8711.2003.06845.x

We study the supercluster shape properties of the recently compiled SDSS cluster catalog using an approach based on differential geometry. We detect superclusters by applying the percolation algorithm to observed cluster populations, extended out to $z_{\rm max}\leq 0.23$ in order to avoid selection biases. We utilize a set of shapefinders in order to study the morphological features of superclusters with $\geq 8$ cluster members and find that filamentary morphology is the dominant supercluster shape feature, in agreement with previous studies.

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