Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cold stream stability during minor mergers   We use high-resolution Eulerian simulations to study the stability of cold
gas flows in a galaxy size dark matter halo (10^12 Msun) at redshift z=2. Our
simulations show that a cold stream penetrating a hot gaseous halo is stable
against thermal convection and Kelvin-Helmholtz instability. We then
investigate the effect of a satellite orbiting the main halo in the plane of
the stream. The satellite is able to perturb the stream and to inhibit cold gas
accretion towards the center of the halo for 0.5 Gyr. However, if the supply of
cold gas at large distances is kept constant, the cold stream is able to
re-establish itself after 0.3 Gyr. We conclude that cold streams are very
stable against a large variety of internal and external perturbations.

23
The categories of this paper are: solv-int
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The categories of this paper are: eess
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph