Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Kinematic evolution of the young local associations and the Sco-Cen
  complex   In this work we propose a scenario for the history of the recent star
formation (during the last 20-30 Myr) in the nearest solar neighbourhood (~150
pc), from the study of the spatial and kinematic properties of the members of
the so-called young local associations, the Sco-Cen complex and the Local
Bubble, the most important structure observed in the local interstellar medium
(ISM).

9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas