Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamical evolution of the Gliese 581 planetary system   We address the issue of the dynamical evolution of the Gliese 581 planetary
system. It is crucial when considering the planets' habitability because the
secular evolution of the orbits may regulate their climate, even in the case
where the system is stable. We have numerically integrated the planetary system
over 10^8 yrs, starting from the present fitted solution. In all cases, the
system appears dynamically stable, even in close to pole-on configurations.
Only a limited range of inclinations can be excluded. The climate on the
planets is expected to be secularly stable, thus not precluding the development
of life. Gl 581 remains the best candidate for a planetary system with planets
that potentially bear primitive forms of life.

9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci