On the possibility of setting a new constraint to scalar-tensor theories
arXiv:1412.6789 · doi:10.1103/PhysRevD.91.064024
Abstract
Scalar-tensor theories (STTs) are a widely studied alternative to General Relativity (GR) in which gravity is endowed with an additional scalar degree of freedom. Although severely constrained by solar system and pulsar timing experiments, there remains a large set of STTs which are consistent with all present day observations. In this paper, we investigate the possibility of probing a yet unconstrained region of the parameter space of STTs based on the fact that stability properties of highly compact neutron stars in these theories may radically differ from those in GR.
8 pages, 4 figures; matches published version
References in corpus (10)
- Shapiro delay measurement of a two solar mass neutron star
- A Massive Pulsar in a Compact Relativistic Binary
- Constraints on a phenomenologically parameterized neutron-star equation of state
- The relativistic pulsar-white dwarf binary PSR J1738+0333 II. The most stringent test of scalar-tensor gravity
- Neutron-star mergers in scalar-tensor theories of gravity
- Theory of gravitation theories: a no-progress report
- Awaking the vacuum in relativistic stars
- The vacuum revealed: the final state of vacuum instabilities in compact stars
- Gravity-induced vacuum dominance
- Instability of nonminimally coupled scalar fields in the spacetime of slowly rotating compact objects
Cited by in corpus (10)
- Spontaneous growth of vector fields in gravity
- The onset of spontaneous scalarization in generalised scalar-tensor theories
- An effective action model of dynamically scalarizing binary neutron stars
- Solar System Constraints on Scalar-Tensor Gravity with Positive Coupling Constant upon Cosmological Evolution of the Scalar Field
- Highly compact neutron stars and screening mechanisms. I. Equilibrium and stability
- Scalar charges and pulsar-timing observables in the presence of nonminimally coupled scalar fields
- Compact Objects in Alternative Gravities
- Dynamical Chameleon Neutron Stars: stability, radial oscillations and scalar radiation in spherical symmetry
- Neutron stars as extreme gravity probes
- Fundamental fields around compact objects: Massive spin-2 fields, Superradiant instabilities and Stars with dark matter cores