Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The tricky line of sight towards Cygnus-X: The [DB2001] CL05 embedded
  cluster as a pilot case   The nearest massive star-forming complex, Cygnus-X, is widely used as a
laboratory for star cluster formation and feedback processes, under the
implicit assumption that all its components are located roughly at the same
distance. We present a multi-wavelength study of a 15' x 15' field in southern
Cygnus-X, where different components involving clustered star formation are
overlapped. Preliminary results indicate that the Berkeley 87 and [DB2001] CL05
clusters are actually located at very different distances, invalidating
previous claims of physical interaction between them. This shows the importance
of a careful treatment of extinction and distance calculations for cluster
formation studies, particularly in Cygnus-X.

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The categories of this paper are: nlin
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The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: quant-ph
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The categories of this paper are: q-bio
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The categories of this paper are: patt-sol
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The categories of this paper are: q-fin
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The categories of this paper are: alg-geom
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The categories of this paper are: comp-gas
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The categories of this paper are: cmp-lg
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The categories of this paper are: eess
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The categories of this paper are: hep-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: chao-dyn