Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Maxwell's demon of star clusters   Stellar binaries are the most important energy reservoir of star clusters.
Via three-body encounters, binaries can reverse the core collapse and prevent a
star cluster from reaching equipartition. Moreover, binaries are essential for
the formation of stellar exotica, such as blue straggler stars,
intermediate-mass black holes and massive ($\gtrsim{}30$ M$_\odot$) black hole
binaries.

35
The categories of this paper are: mtrl-th
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The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
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The categories of this paper are: hep-lat
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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
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an