Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Searches for Low-Metallicity Galaxies and Preliminary Results from the
  KPNO International Spectroscopic Survey   Searches for low-metallicity galaxies are reviewed, focusing mainly on
efforts to discover systems that are relevant for use in measuring the
primordial helium abundance. Wide-field objective-prism surveys for blue or
emission-line galaxies have played a major role in this field. Previous surveys
and search techniques are highlighted. Preliminary results from our new survey
for emission-line galaxies, the KPNO International Spectroscopic Survey (KISS),
are presented. KISS is substantially deeper than previous photographic surveys,
and represents the next generation of wide-field slitless spectroscopic
surveys.

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The categories of this paper are: atom-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: solv-int
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The categories of this paper are: econ
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The categories of this paper are: adap-org
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The categories of this paper are: quant-ph
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The categories of this paper are: physics
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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-ph
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The categories of this paper are: funct-an
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The categories of this paper are: q-bio
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The categories of this paper are: alg-geom