Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dwarf carbon stars are likely metal-poor binaries and unlikely hosts to
  carbon planets   Dwarf carbon stars make up the largest fraction of carbon stars in the Galaxy
with around 1200 candidates known to date primarily from the Sloan Digital Sky
Survey. They either possess primordial carbon-enhancements, or are polluted by
mass transfer from an evolved companion such that C/O is enhanced beyond unity.
To directly test the binary hypothesis, a radial velocity monitoring survey has
been carried out on 28 dwarf carbon stars, resulting in the detection of
variations in 21 targets. Using Monte Carlo simulations, this detection
fraction is found to be consistent with a 100% binary population and orbital
periods on the order of hundreds of days. This result supports the post-mass
transfer nature of dwarf carbon stars, and implies they are not likely hosts to
carbon planets.

11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ