Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ram-Ppressure Effects on Dense Molecular Arms in the Central Regions of
  Spiral Galaxies by Intracluster Medium   We investigated ram-pressure effects by an intracluster wind on an inner disk
of spiral galaxies by a hydrodynamical simulation. Even if the wind is mild and
not strong enough to strip the gas disk, the ram pressure disturbs orbits of
the inter-arm gas significantly. This results in asymmetric dense molecular
arms in the inner few kpc region of a galaxy. This mechanism would explain the
asymmetric CO gas distributions in the central regions often observed in Virgo
spirals.

28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org