Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: DLA kinematics and outflows from starburst galaxies   We present results from a numerical study of the multiphase interstellar
medium in sub-Lyman-break galaxy protogalactic clumps. Such clumps are abundant
at z=3 and are thought to be a major contributor to damped Ly-alpha absorption.
We model the formation of winds from these clumps and show that during star
formation episodes they feature outflows with neutral gas velocity widths up to
several hundred km/s. Such outflows are consistent with the observed
high-velocity dispersion in DLAs. In our models thermal energy feedback from
winds and supernovae results in efficient outflows only when cold (~ 300 K),
dense (> 100 msun/pc^3) clouds are resolved at grid resolution of 12 pc. At
lower 24 pc resolution the first signs of the multiphase medium are spotted;
however, at this low resolution thermal injection of feedback energy cannot yet
create hot expanding bubbles around star-forming regions -- instead feedback
tends to erase high-density peaks and suppress star formation. At 12 pc
resolution feedback compresses cold clouds, often without disrupting the
ongoing star formation; at the same time a larger fraction of feedback energy
is channeled into low-density bubbles and winds. These winds often entrain
compact neutral clumps which produce multi-component metal absorption lines.

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The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg