Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: N-body Models of Rotating Globular Clusters   We have studied the dynamical evolution of rotating globular clusters with
direct $N$-body models. Our initial models are rotating King models; we
obtained results for both equal-mass systems and systems composed out of two
mass components. Previous investigations using a Fokker-Planck solver have
revealed that rotation has a noticeable influence on stellar systems like
globular clusters, which evolve by two-body relaxation. In particular, it
accelerates their dynamical evolution through the gravogyro instability. We
have validated the occurence of the gravogyro instability with direct $N$-body
models. In the case of systems composed out of two mass components, mass
segregation takes place, which competes with the rotation in the acceleration
of the core collapse. The "accelerating" effect of rotation has not been
detected in our isolated two-mass $N$-body models. Last, but not least, we have
looked at rotating $N$-body models in a tidal field within the tidal
approximation. It turns out that rotation increases the escape rate
significantly. A difference between retrograde and prograde rotating star
clusters occurs with respect to the orbit of the star cluster around the
Galaxy, which is due to the presence of a ``third integral'' and chaotic
scattering, respectively.

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The categories of this paper are: supr-con
9
The categories of this paper are: nlin
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
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The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
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The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th