Issue |
A&A
Volume 370, Number 2, May I 2001
|
|
---|---|---|
Page(s) | 358 - 364 | |
Section | Astrophysical processes | |
DOI | https://doi.org/10.1051/0004-6361:20010249 | |
Published online | 15 May 2001 |
Scaling analysis of galaxy distribution in the Las Campanas Redshift Survey data
1
Department of Physics, Ochanomizu University, 2-2-1 Otsuka, Bunkyo, Tokyo 112-8610, Japan
2
Institute for Gender Studies, Ochanomizu University, 2-2-1 Otsuka, Bunkyo, Tokyo 112-8610, Japan
3
Meteorological Research Institute, 1-1 Nagamine, Tsukuba 305-0052, Japan
Corresponding author: T. Kurokawa, perle@cosmos.phys.ocha.ac.jp
Received:
14
December
1999
Accepted:
23
November
2000
The Las Campanas Redshift Survey data are used to investigate
structures ofthe galaxy number distribution. We construct two
volume-limited samples with sizes of and
h-1 Mpc,
and calculate the second- to ninth-order moments with the count-in-cell
method. The galaxy distribution at ≥30 h-1 Mpc is found
to be statistically homogeneous. On the other hand, we find a multifractal
scaling at <30 h-1 Mpc. From the scaling exponent, we
obtain the generalized dimension, which decreases from 2 toward 1 as the
order is increased from 2 to 9. Galaxies are known to lie, around voids, in
planar structures with filamentary dense regions. The present result
indicates that these void-filament structures are predominant up to 30 h-1 Mpc. Statistically, they appear to be the largest-scale
significant structures in the Universe.
Key words: cosmology: observations / large-scale structure of Universe / methods: statistical
© ESO, 2001
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