Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Young Eclipsing Binary and its Luminous Neighbors in the Embedded Star
  Cluster Sh 2-252E   We present a photometric and light curve analysis of an eccentric eclipsing
binary in the K2 Campaign 0 field that resides in Sh 2-252E, a young star
cluster embedded in an H II region. We describe a spectroscopic investigation
of the three brightest stars in the crowded aperture to identify which is the
binary system. We find that none of these stars are components of the eclipsing
binary system, which must be one of the fainter nearby stars. These bright
cluster members all have remarkable spectra: Sh 2-252a (EPIC 202062176) is a
B0.5 V star with razor sharp absorption lines, Sh 2-252b is a Herbig A0 star
with disk-like emission lines, and Sh 2-252c is a pre-main sequence star with
very red color.

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The categories of this paper are: cs
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
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The categories of this paper are: chao-dyn
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The categories of this paper are: gr-qc
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The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
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The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas