Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A cosmological study of the star formation history in the solar
  neighbourhood   We use a cosmological galactic evolutionary approach to model the Milky Way.
A detailed treatment of the mass aggregation and dynamical history of the
growing dark halo is included, together with a self consistent physical
treatment for the star formation processes within the growing galactic disc.
This allows us to calculate the temporal evolution of star and gas surface
densities at all galactic radii, in particular, the star formation history
(SFH) at the solar radius. A large range of cosmological mass aggregation
histories (MAHs) is capable of producing a galaxy with the present day
properties of the Milky Way. The resulting SFHs for the solar neighbourhood
bracket the available observational data for this feature, the most probable
MAH yielding the optimal comparison with these observations. We also find that
the rotation curve for our Galaxy implies the presence of a constant density
core in its dark matter halo.

28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat