Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Metal Abundances of KISS Galaxies. II. Nebular Abundances of Twelve
  Low-Luminosity Emission-Line Galaxies   We present follow-up spectra of 39 emission-line galaxies (ELGs) from the
KPNO International Spectroscopic Survey (KISS). Many targets were selected as
potentially low metallicity systems based on their absolute B magnitudes and
the metallicity-luminosity relation. The spectra, obtained with the Lick 3-m
telescope, cover the full optical region from [O II]3726,29 to beyond [S
IIl6717,31 and include measurement of [O IIIl4363 in twelve objects. The
spectra are presented and tables of the strong line ratios are given. For
twelve high signal-to-noise ratio spectra, we determine abundance ratios of
oxygen, nitrogen, neon, sulfur and argon. We find these galaxies to be metal
deficient with three systems approaching O/H of 1/25th solar. We compare the
abundance results from the temperature-based T_e method to the results from the
strong-line p_3 method of Pilyguin (2000).

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The categories of this paper are: funct-an
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The categories of this paper are: physics
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The categories of this paper are: hep-ex
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The categories of this paper are: adap-org
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The categories of this paper are: atom-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
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The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
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The categories of this paper are: supr-con
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The categories of this paper are: nlin
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The categories of this paper are: quant-ph
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The categories of this paper are: econ
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The categories of this paper are: nucl-ex