Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Continuum Emission Spectrum of Hf 2-2 near the Balmer Limit and the
  ORL versus CEL abundance and temperature Discrepancy   The continuum spectrum of the planetary nebula Hf 2-2 close to the Balmer
discontinuity is modeled in the context of the long standing problem of the
abundance and temperature discrepancy found when analyzing optical
recombination lines and collisionally excited forbidden lines in nebulae.
Models are constructed using single and double Maxwell-Boltzmann distributions
as well as kappa-distributions for the energies of the free electrons. New
results for the necessary continuum and line emission coefficients are
presented calculated with kappa-distributed energies. The best fit to the
observed continuum spectrum is found to be a model comprising two components
with dramatically different temperatures and with a Maxwell-Boltzmann
distribution of electron energies. On the basis of a chi-squared analysis, this
model is strongly favored over a model with kappa-distributed electron
energies.

12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: q-fin
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th