Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Astrophysical evidence for an extra dimension: phenomenology of a Kaluza
  Klein theory   In this brief review we discuss the viability of a multidimensional
geometrical theory with one compactified dimension. We discuss the case of a
Kaluza Klein fifth dimensional theory, addressing the problem by an overview of
the astrophysical phenomenology associated with this five dimensional theory.
By comparing the predictions of our model with the features of the ordinary
(four dimensional) Relativistic Astrophysics, we highlight some small but
finite discrepancies, expectably detectible from the observations. We consider
a class of static, vacuum solutions of free electromagnetic Kaluza Klein
equations with three dimensional spherical symmetry. We explore the stability
of the particle dynamics in these spacetimes, the construction of self
gravitating stellar models and the emission spectrum generated by a charged
particle falling on this stellar object. The matter dynamics in these
geometries has been treated by a multipole approach adapted to the geometric
theory with a compactified dimension.

35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph