Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Three-dimensional decomposition of galaxies with bulge and long bar   Some observations indicate that the Milky Way has two inner components, a
bulge and a long bar, which present a misalignment of about 20 degrees that is
against the predictions of some theoretical models that are based on numerical
simulations. In this paper, we wish to determine whether this misalignment
between the bar and the bulge can be observed in barred galaxies other than the
Milky Way. For that, each galaxy of our sample was decomposed based on its
Ks-band 2MASS image by fitting and modelling in a three-dimensional (3D) space
the following components: a disc, a bar, and a bulge. The chi-square
goodness-of-fit estimation allowed retrieving the best-fit angle values for the
bar and the bulge to detect any misalignment. From the 3D decomposition of six
barred galaxies, we have detected at least three galaxies (NGC 2217, NGC 3992,
and NGC 4593) that present a significant misalignment between the bar and the
bulge of more than 20 degrees.

27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int