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Tests of smoothing methods for topological study of galaxy redshift surveysStudying 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.
Document ID
19930052371
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Melott, Adrian L.
(NASA Headquarters Washington, DC United States)
Dominik, Kurt G.
(Kansas Univ. Lawrence, United States)
Date Acquired
August 16, 2013
Publication Date
May 1, 1993
Publication Information
Publication: Astrophysical Journal Supplement Series
Volume: 86
Issue: 1
ISSN: 0067-0049
Subject Category
Astrophysics
Accession Number
93A36368
Funding Number(s)
CONTRACT_GRANT: NSF AST-90-21414
CONTRACT_GRANT: NAGW-2923
Distribution Limits
Public
Copyright
Other

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