Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modeling Transiting Circumstellar Disks: Characterizing the Newly
  Discovered Eclipsing Disk System OGLE LMC-ECL-11893   We investigate the nature of the unusual eclipsing star OGLE LMC-ECL-11893
(OGLE J05172127-6900558) in the Large Magellanic Cloud recently reported by
Dong et al. 2014. The eclipse period for this star is 468 days, and the
eclipses exhibit a minimum of ~1.4 mag, preceded by a plateau of ~0.8 mag.
Spectra and optical/IR photometry are consistent with the eclipsed star being a
lightly reddened B9III star of inferred age ~150 Myr and mass of ~4 solar
masses. The disk appears to have an outer radius of ~0.2 AU with predicted
temperatures of ~1100-1400 K. We model the eclipses as being due to either a
transiting geometrically thin dust disk or gaseous accretion disk around a
secondary object; the debris disk produces a better fit. We speculate on the
origin of such a dense circumstellar dust disk structure orbiting a relatively
old low-mass companion, and on the similarities of this system to the
previously discovered EE Cep.

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The categories of this paper are: gr-qc
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The categories of this paper are: nlin
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The categories of this paper are: q-fin
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The categories of this paper are: physics
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The categories of this paper are: stat
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The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: cs
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The categories of this paper are: nucl-th
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The categories of this paper are: supr-con
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-th
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The categories of this paper are: math-ph
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The categories of this paper are: hep-ph