Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The low-mass pre-main sequence population of the stellar association LH
  52 in the Large Magellanic Cloud discovered with Hubble Space Telescope WFPC2
  Observations   We report on the serendipitous discovery of ~ 500 low-mass candidate PMS
stars in the vicinity of the stellar association LH 52 in the Large Magellanic
Cloud. We present evidence that the red faint sequence of these stars seen in
the CMD of LH 52 from HST/WFPC2 observations belongs only to the association
and follows almost perfectly isochrone models for PMS stars of masses down to ~
0.3 M_solar. We find that this feature has a Galactic counterpart and that the
mass spectrum of the candidate PMS stars in LH 52 seems to correspond to a
Salpeter IMF with a slope Gamma ~ -1.26 in the mass range 0.8 - 1.4 M_solar.

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The categories of this paper are: plasm-ph
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The categories of this paper are: physics
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The categories of this paper are: gr-qc
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The categories of this paper are: ao-sci
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The categories of this paper are: atom-ph
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The categories of this paper are: cs
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The categories of this paper are: hep-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: math-ph
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The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: acc-phys
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The categories of this paper are: chem-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: adap-org