Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Carbon-to-Oxygen Ratios in M dwarfs and Solar-type stars   Initial C/O ratios of circumstellar disks have been obtained in solar-type
stars by differential photospheric abundance analysis with respect to the Sun.
We present C/O ratios of M dwarfs obtained by absolute abundance analysis
derived from CO and H2O spectra in the K-band. We compare the distributions of
C/O ratios in M dwarfs and solar-type stars using the Kolmogorov-Smirnov test.
The C/O distribution of M dwarfs is consistent with low frequency of high C/O
ratios in solar-type stars.

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The categories of this paper are: cond-mat
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The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
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The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-th
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The categories of this paper are: math