Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Massive Star Formation in the LMC. I. N159 and N160 Complexes   We present images and spectral energy distributions (SEDs) of massive young
stellar objects (YSOs) in three star-forming H II regions of the Large
Magellanic Cloud: N159A, N159 Papillon, and N160. We use photometry from
SOFIA/FORCAST at 25.3--37.1 um to constrain model fits to the SEDs and
determine luminosities, ages, and dust content of the embedded YSOs and their
local environments. By placing these sources on mid-infrared color-magnitude
and color-color diagrams, we analyze their dust properties and consider their
evolutionary status. Since each object in the FORCAST images has an obvious
bright near-infrared counterpart in Spitzer Space Telescope images, we do not
find any evidence for new, very cool, previously-undiscovered Class 0 YSOs.
Additionally, based on its mid-infrared colors and model parameters, N159A is
younger than N160 and the Papillon. The nature of the first extragalactic
protostars in N159, P1 and P2, is also discussed.

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The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: atom-ph
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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: cond-mat
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The categories of this paper are: supr-con
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The categories of this paper are: dg-ga
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The categories of this paper are: cs
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The categories of this paper are: alg-geom
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The categories of this paper are: math-ph
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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: nlin
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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-th