Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radiation Pressure Feedback in Galaxies   We evaluate radiation pressure from starlight on dust as a feedback mechanism
in star-forming galaxies by comparing the luminosity and flux of star-forming
systems to the dust Eddington limit. The linear LFIR--L'HCN correlation
provides evidence that galaxies may be regulated by radiation pressure
feedback. We show that star-forming galaxies approach but do not dramatically
exceed Eddington, but many systems are significantly below Eddington, perhaps
due to the "intermittency" of star formation. Better constraints on the
dust-to-gas ratio and the CO- and HCN-to-H2 conversion factors are needed to
make a definitive assessment of radiation pressure as a feedback mechanism.

4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
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The categories of this paper are: funct-an
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-th
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The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat