Fluctuations in galaxy counts: A new test for homogeneity vs. fractality

Fractal properties are usually characterized by means of various statistical tools which deal with spatial average quantities. Here we focus on the determination of fluctuations around the average counts and we develop a test for the study of galaxy distribution both in redshift and magnitude space....

Full description

Saved in:
Bibliographic Details
Published in:Europhysics letters 2001-05, Vol.54 (3), p.286-292
Main Authors: Gabrielli, A, Labini, F. Sylos
Format: Article
Language:English
Subjects:
05.20.-y
98.65.-r
Astronomy
Earth, ocean, space
Exact sciences and technology
Galaxy groups, clusters, and superclusters. Large-scale structure of the universe
Stellar systems. Galactic and extragalactic objects and systems. The universe
Superclusters. Large-scale structure of the universe (including voids, pancakes, great wall, etc.)
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Fractal properties are usually characterized by means of various statistical tools which deal with spatial average quantities. Here we focus on the determination of fluctuations around the average counts and we develop a test for the study of galaxy distribution both in redshift and magnitude space. Fluctuations in the counts of galaxies, in a fractal distribution, are of the same order of the average number at all scales as a function of redshift and magnitude. We point out that the study of these kinds of fluctuations can be a powerful test to understand the nature of galaxy clustering at very large scales.
ISSN:0295-5075
1286-4854
DOI:10.1209/epl/i2001-00239-3