Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Evolution of Clusters of Galaxies: Mass Stripping from Galaxies and
  Growth of Common Halos   We investigated the evolution of clusters of galaxies using self-consistent
$N$-body simulations in which each galaxy was modeled by many particles. We
carried out simulations for about 20 cases using different initial conditions.
In all simulations, clusters were initially in virial equilibrium. We found
that more than half of the total mass escaped from individual galaxies within a
few crossing times of the cluster, and that a diffuse halo was formed. The
growth rate of the common halo depended on the size of individual galaxies only
weakly. The stripping of the mass from galaxies was mainly due to the
interaction of galaxies, not due to the effect of the tidal field of the
cluster potential. The amount of stripped mass was larger for galaxies in the
central region than for those in the outer region, since the interactions were
more frequent in the central region. As a result, a positive correlation
between the distance from the center and the mass of the galaxy developed. The
volume-density profile of the common halo is expressed as $\rho\propto r^{-1}$
in the central region. This mass distribution is consistent with the mass
distribution in clusters estimated using X-ray observations.

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The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
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The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-lat
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The categories of this paper are: q-fin
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
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The categories of this paper are: eess
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The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: adap-org
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The categories of this paper are: dg-ga
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The categories of this paper are: bayes-an
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The categories of this paper are: chao-dyn