Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The formation of the Galactic bulge in an inside-out scenario   Chemical evolution models (CEM) are important tools to understand the
formation and evolution of the components of the Milky Way Galaxy and other
galaxies in the universe. The Galactic bulge is the only galaxy bulge that can
be resolved and can be studied with exquisite details. In this way, the bulge
metallicity distribution function (MDF) can be traced for different regions
within the bulge and can give us clues about the bulge formation scenario. In
this work we have assumed an inside-out formation for the Galactic bulge and
using a CEM we were able to compute the chemical evolution in nine different
radial regions, from 0 to 2 kpc, in steps of 0.25 kpc . The preliminary results
show that in the inner regions of the bulge the MDF is skewed to higher
metallicities, while at the outer regions there is a metal rich component but
also a metal poor component much more extended than in the inner regions. These
results may explain the metallicity gradient observed in the Galactic bulge.

1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph