Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Flat rotation curves using scalar-tensor theories   We computed flat rotation curves from scalar-tensor theories in their weak
field limit. Our model, by construction, fits a flat rotation profile for
velocities of stars. As a result, the form of the scalar field potential and DM
distribution in a galaxy are determined. By taking into account the constraints
for the fundamental parameters of the theory $(\lambda, \alpha)$, it is
possible to obtain analytical results for the density profiles. For positive
and negative values of $\alpha$, the DM matter profile is as cuspy as NFW's.

37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc