Astronomy and Astrophysics – Astronomy
Scientific paper
May 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apjs...86....1m&link_type=abstract
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 86, no. 1, p. 1-4.
Astronomy and Astrophysics
Astronomy
15
Data Smoothing, Galactic Structure, Red Shift, Galactic Clusters, Sky Surveys (Astronomy), Topology
Scientific paper
Studying the topology of large-scale structure as a way to better understand initial conditions has become more widespread in recent years. Studying topology of simulations (which have periodic boundary conditions) in redshift space produces results compatible with the real topological characteristics of the simulation. Thus we expect we can extract useful information from redshift surveys. However, with nonperiodic boundary conditions, the use of smoothing must result in the loss of information at survey boundaries. In this paper, we test different methods of smoothing samples with nonperiodic boundary conditions to see which most efficiently preserves the topological features of the real distribution. We find that a smoothing method which (unlike most previous published analysis) sums only over cells inside the survey volume produces the best results among the schemes tested.
Dominik Kurt G.
Melott Adrian L.
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