Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Compact stars in alternative theories of gravity.
  Einstein-Dilaton-Gauss-Bonnet gravity   We develop a theoretical framework to study slowly rotating compact stars in
a rather general class of alternative theories of gravity, with the ultimate
goal of investigating constraints on alternative theories from electromagnetic
and gravitational-wave observations of compact stars. Our Lagrangian includes
as special cases scalar-tensor theories (and indirectly f(R) theories) as well
as models with a scalar field coupled to quadratic curvature invariants. As a
first application of the formalism, we discuss (for the first time in the
literature) compact stars in Einstein-Dilaton-Gauss-Bonnet gravity. We show
that compact objects with central densities typical of neutron stars cannot
exist for certain values of the coupling constants of the theory. In fact, the
existence and stability of compact stars sets more stringent constraints on the
theory than the existence of black hole solutions. This work is a first step in
a program to systematically rule out (possibly using Bayesian model selection)
theories that are incompatible with astrophysical observations of compact
stars.

32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
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The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
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The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
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The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
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The categories of this paper are: stat
24
The categories of this paper are: dg-ga