Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Simulations of Barred Galaxies in Triaxial Dark Matter Haloes: The
  Effects of Gas   The baryonic discs of galaxies are believed to alter the shapes of the dark
matter haloes in which they reside. We perform a set of hydrodynamical N-body
simulations of disc galaxies with triaxial dark matter haloes, using elliptical
discs with a gaseous component as initial conditions. We explore models of
different halo triaxiality and also of different initial gas fractions, which
allows us to evaluate how each affects the formations of the bar. Due to star
formation, models of all halo shapes and of all initial gas fractions reach
approximately the same gas content at the end of the simulation. Nevertheless,
we find that the presence of gas in the early phases has important effects on
the subsequent evolution. Bars are generally weaker for larger initial gas
content and for larger halo triaxiality. The presence of gas, however, is a
more efficient factor in inhibiting the formation of a strong bar than halo
triaxiality is.

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The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
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The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
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The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
1
The categories of this paper are: cs
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The categories of this paper are: eess
9
The categories of this paper are: nlin
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The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int