Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On white dwarfs and neutron stars in Palatini f(R) gravity   In Palatini $f(R)$ gravity, the parameters of the Schwarzschild - de Sitter
solution as well as the whole interior solutions of compact objects are
expected to change when compared to general relativity. We solve the Palatini
field equations numerically in the case of the models $f(R) = R + \alpha R^2$
and $f(R) = R - \mu^4/R$, and using the equation of state of Fermi gas. We show
how the density profiles and the prediction for the maximum masses of white
dwarfs (the Chandrasekhar limit) and neutron stars (the
Tolman-Oppenheimer-Volkoff limit) are altered, and thereby conclude that
observations on compact stars may be used to exclude alternative gravity
models.

20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph