Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CosmicGrowth Simulations---Cosmological simulations for structure growth
  studies   I present a large set of high resolution simulations, called CosmicGrowth
Simulations, which were generated with either 8.6 billion or 29 billion
particles. As the nominal cosmological model that can match nearly all
observations on cosmological scales, I have adopted a flat Cold Dark Matter
(CDM) model with a cosmological constant $\Lambda$ (${\Lambda}$CDM). The model
parameters have been taken either from the latest result of the WMAP satellite
(WMAP ${\Lambda}$CDM) or from the first year's result of the Planck satellite
(Planck ${\Lambda}$CDM). Six simulations are produced in the ${\Lambda}$CDM
models with two in the Planck model and the others in the WMAP model. In order
for studying the nonlinear evolution of the clustering, four simulations were
also produced with $8.6$ billion particles for the scale-free models of an
initial power spectrum $P(k)\propto k^n$ with $n=0$,$-1$,$-1.5$ or $-2.0$.
Furthermore, two radical CDM models (XCDM) are simulated with 8.6 billion
particles each. Since the XCDM have some of the model parameters distinct from
those of the ${\Lambda}$CDM models, they must be unable to match the
observations, but are very useful for studying how the clustering properties
depend on the model parameters. The Friends-of-Friends (FoF) halos were
identified for each snapshot and subhalos were produced by the Hierarchical
Branch Tracing (HBT) algorithm. These simulations form a powerful database to
study the growth and evolution of the cosmic structures both in theories and in
observations.

17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc