Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tidal thickening of galaxy disks   We have studied a sample of 24 edge-on interacting galaxies and compared them
to edge-on isolated galaxies, to investigate the effects of tidal interaction
on disk thickening. We found that the ratio h/z of the radial exponential
scalelength h to the scale height z is about twice smaller for interacting
galaxies. This is found to be due both to a thickening of the plane, and to a
radial stripping or shrinking of the stellar disk. If we believe that any
galaxy experienced a tidal interaction in the past, we must conclude that
continuous gas accretion and subsequent star formation can bring back the ratio
h/z to higher values, in a time scale of 1 Gyr.

21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph