Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Line Identification and Excitation of Autoionizing States in a
  Late-Type, Low Mass Wolf-Rayet Star   Identifications of a large fraction of previously unidentified lines in the
complex spectrum of the low mass, late-type LMC [WC11] star J060819.93-715737.4
have been made utilizing electronic databases. There are an exceptionally large
number of C II emission lines originating from autoionizing (ai) levels.
Resonance fluorescence between the C II ground state and excited ai levels is
shown to be a important photoabsorption process that is competitive with
dielectronic recombination in exciting ai emission lines in stellar winds, and
has broad application to many types of emission-line stars. In addition,
numerous C II quartet multiplets appear in emission that are not excited
directly by recombination or resonance fluorescence, signifying high wind
densities in the emission region that enhance collisional transfer between
doublet and quartet states.

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The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
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The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
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The categories of this paper are: stat
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The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ