Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Evolution of Binary Fractions in Globular Clusters   We study the evolution of binary stars in globular clusters using a new Monte
Carlo approach combining a population synthesis code (StarTrack), and a simple
treatment of dynamical interactions in the dense cluster core using a new tool
for computing 3-body and 4-body interactions (Fewbody). We find that the
combination of stellar evolution and dynamical interactions (binary-single and
binary-binary) leads to a rapid depletion of the binary population in the
cluster core. The maximum binary fraction today in the core of a typical dense
cluster like 47 Tuc, assuming an initial binary fraction of 100%, is only about
5-10%. We show that this is in good agreement with recent HST observations of
close binaries in the core of 47 Tuc, provided that a realistic distribution of
binary periods is used to interpret the results. Our findings also have
important consequences for the dynamical modeling of globular clusters,
suggesting that ``realistic models'' should incorporate much larger initial
binary fractions than has usually been done in the past.

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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
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The categories of this paper are: stat
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The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex