Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dissipationless Collapse of Spherical Protogalaxies and the Fundamental
  Plane   Following on from the numerical work of Capelato, de Carvalho & Carlberg
(1995, 1997), where dissipationless merger simulations were shown to reproduce
the "Fundamental Plane" (FP) of elliptical galaxies, we investigate whether the
end products of pure, spherically symmetric, one-component dissipationless {\it
collapses} could also reproduce the FP. Past numerical work on collisionless
collapses have addressed important issues on the dynamical/structural
characteristics of collapsed equilibrium systems. However, the study of
collisionless collapse in the context of the nature of the FP has not been
satisfactorily addressed yet. Our aim in this paper is to focus our attention
on the resulting collapse of simple one-component spherical models with a range
of different initial virial coefficients. We find that the characteristic
correlations of the models are compatible with virialized, centrally homologous
systems. Our results strengthen the idea that merging may be a fundamental
ingredient in forming non-homologous objects.

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The categories of this paper are: math
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The categories of this paper are: stat
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The categories of this paper are: q-alg
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The categories of this paper are: math-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: physics
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The categories of this paper are: patt-sol
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The categories of this paper are: gr-qc
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The categories of this paper are: solv-int
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The categories of this paper are: q-bio
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: plasm-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-th