Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fractal dimension and turbulence in Giant HII Regions   We have measured the fractal dimensions of the Giant HII Regions Hubble X and
Hubble V in NGC6822 using images obtained with the Hubble's Wide Field
Planetary Camera 2 (WFPC2). These measures are associated with the turbulence
observed in these regions, which is quantified through the velocity dispersion
of emission lines in the visible. Our results suggest low turbulence behaviour.

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The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
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The categories of this paper are: cs
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph