Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Giant H II regions in the merging system NGC 3256: Are they the
  birthplaces of globular clusters?   CCD images and spectra of ionized hydrogen in the merging system NGC3256 were
acquired as part of a kinematic study to investigate the formation of globular
clusters (GC) during the interactions and mergers of disk galaxies. This paper
focuses on the proposition that giant H II regions, with an H_alpha luminosity
> 1.5 x 10^{40} erg s^{-1}, are birthplaces of young populous clusters (YPC).
We estimate 900 30-Doradus-like H II regions formed during the galaxy-galaxy
interaction which created NGC 3256. A specific frequency argument for forming a
sufficient number of GC, assuming that the NGC3256 merger remnant will be an
elliptical galaxy, only requires that about 10% of these H II regions harbor
YPC which survive several Gyr and have masses at least as large as the cluster
R136 in 30 Doradus.

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The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: adap-org
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The categories of this paper are: ao-sci
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-fin
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The categories of this paper are: nlin
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The categories of this paper are: math-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: mtrl-th