Scaling Law of Exponents in Cosmological Clustering
ZHANG Hang, LI Xiao-Qing
Department of Physics, Nanjing Normal University, Nanjing 210097
Scaling Law of Exponents in Cosmological Clustering
ZHANG Hang;LI Xiao-Qing
Department of Physics, Nanjing Normal University, Nanjing 210097
关键词 ：
98.65.-r ,
82.20.Mj ,
05.70.Jk
Abstract ： The density of N-clusters (the cluster which contains N galaxies) in the universe is shown from observations to scale with N as nN ∝ N-τ with τ = 3/γ +1 and the correlation exponent γ ≈ 1.8. Correspondingly, a scaling relation τ = 29-9γ/12-4γ between the two exponents, which agrees with the observations, is found analytically in our naive clustering model.
Key words ：
98.65.-r
82.20.Mj
05.70.Jk
出版日期: 2002-02-01
:
98.65.-r
(Galaxy groups, clusters, and superclusters; large scale structure of the Universe)
82.20.Mj
05.70.Jk
(Critical point phenomena)
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2002, Vol. 19 
