Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: First direct identification of the barlens vertical structure in galaxy
  models   Applying spectral dynamics methods to one typical $N$-body model with a
barlens, we dissect the modelled bar into separate components supported by
completely different types of orbits. We identify at least four components: a
narrow elongated bar, a boxy bar, and two components contributing to the
barlens. We analyse the vertical structure of all components that make up the
thick part of the bar, which has a boxy/peanut shape (B/P bulge). We show that
the `peanut' shape is mainly due to the orbits that assemble the boxy part of
the face-on bar. We associate the X-shape with the narrow and elongated bar.
The wider part of the barlens with square-like isophotes contributes to the
boxy shape of the B/P bulge when we observe the galaxy edge-on. However, the
part of the barlens with rounded isophotes in the face-on view is a rather flat
structure in the vertical direction without any significant off-centre
protrusions. Thus, for the first time, we demonstrate that the rounded face-on
barlens cannot be entirely associated with the B/P bulge.

7
The categories of this paper are: hep-th
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat