Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Period-Luminosity Relations Derived from the OGLE-III Fundamental Mode
  Cepheids   In this Paper, we have derived Cepheid period-luminosity (P-L) relations for
the Large Magellanic Cloud (LMC) fundamental mode Cepheids, based on the data
released from OGLE-III. We have applied an extinction map to correct for the
extinction of these Cepheids. In addition to the VIW band P-L relations, we
also include JHK and four Spitzer IRAC band P-L relations, derived by matching
the OGLE-III Cepheids to the 2MASS and SAGE datasets, respectively. We also
test the non-linearity of the Cepheid P-L relations based on
extinction-corrected data. Our results (again) show that the LMC P-L relations
are non-linear in VIJH bands and linear in KW and the four IRAC bands,
respectively.

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The categories of this paper are: gr-qc
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The categories of this paper are: hep-ex
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The categories of this paper are: econ
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The categories of this paper are: hep-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: adap-org
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The categories of this paper are: alg-geom
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The categories of this paper are: math
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The categories of this paper are: q-alg
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The categories of this paper are: comp-gas
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The categories of this paper are: q-fin
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The categories of this paper are: hep-th
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: chao-dyn
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The categories of this paper are: cs