Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gamma Rays from Large-Scale Outflows in Starburst Galaxies   The combined effects of supernova explosions and stellar winds produce a hot
bubble in the central regions of starburst galaxies. As the bubble expands, it
can outbreak into the galactic halo driving a superwind that transports hot gas
and fields to the intergalactic space. We present estimates of cosmic ray
generation and gamma-ray emission in both this large-scale wind and the bow
shocks created around the embedded clouds.

20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs