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Title:
Relation of redshift surveys to matter distribution in spherically symmetric dust universes
Authors:
Kurki-Suonio, Hannu; Liang, Edison
Affiliation:
AA(Lawrence Livermore National Laboratory, Livermore, CA), AB(Lawrence Livermore National Laboratory, Livermore, CA)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 390, no. 1, May 1, 1992, p. 5-16. (ApJ Homepage)
Publication Date:
05/1992
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Cosmology, Galaxies, Intergalactic Media, Red Shift, Universe, Distance, Sky Surveys (Astronomy), Space-Time Functions
DOI:
10.1086/171254
Bibliographic Code:
1992ApJ...390....5K

Abstract

Redshift surveys are commonly used to map the distribution of matter in space. The relation of the observed distribution in redshift space to the actual spacetime and its matter distribution in the spherically symmetric (Tolman-Bondi) dust model is considered. Density inhomogeneities may be either curvature radius inhomogeneities or bang time inhomogeneities or some combination of these. In the pure curvature radius case the inhomogeneity appears stronger in the redshift space, whereas in a pure bang time case an observed overdensity corresponds to an actual underdensity of a larger amplitude.

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