Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The impact on the general properties of HII galaxies in the local
  universe of the visibility of the [OIII]l 4363 line   We present a statistical study of a very large sample of HII galaxies taken
from the literature. We focus on the differences in several properties between
galaxies that show the auroral line [OIII]l4363 and those that do not present
this feature in their spectra. It turns out that objects without this auroral
line are more luminous, more metal-rich and present a lower ionization degree.
The underlying population is found to be much more important for objects
without the [OIII]l 4363 line, and the effective temperature of the ionizing
star clusters of galaxies not showing the auroral line is probably lower. We
also study the subsample of HII galaxies whose properties most closely resemble
the properties of the intermediate-redshift population of Luminous Compact Blue
Galaxies (LCBGs). The objects from this subsample are more similar to the
objects not showing the [OIII]l 4363 line. It might therefore be expected that
the intermediate-redshift population of LCBGs is powered by very massive, yet
somewhat aged star clusters. The oxygen abundance of LCBGs would be greater
than the average oxygen abundance of local HII galaxies.

21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-alg
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The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex