Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: WIYN Open Cluster Study: Tidal Interactions in Solar type Binaries   We present an ongoing study on tidal interactions in late-type close binary
stars. New results on tidal circularization are combined with existing data to
test and constrain theoretical predictions of tidal circularization in the
pre-main-sequence (PMS) phase and throughout the main-sequence phase of stellar
evolution. Current data suggest that tidal circularization during the PMS phase
sets the tidal cutoff period for binary populations younger than ~1 Gyr. Binary
populations older than ~1 Gyr show increasing tidal cutoff periods with age,
consistent with active main-sequence tidal circularization.

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The categories of this paper are: hep-ph
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The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
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The categories of this paper are: physics
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
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The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
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The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con