Gravitational antiscreening in stellar interiors
General Relativity and Quantum Cosmology
2020-01-16 v2 High Energy Astrophysical Phenomena
High Energy Physics - Theory
Abstract
A new class of relativistic stellar structure equations which include the effects of an energy-dependent Newton coupling is presented. Significant modifications in the mass-radius relation for neutron stars are possible only if the running of the Newton coupling due to quantum gravity occurs at low energies. A new Buchdahl limit is derived and its physical implications are discussed. In particular, sub-Planckian self-gravitating objects with arbitrarily small radii are possible.
Keywords
Cite
@article{arxiv.1910.11393,
title = {Gravitational antiscreening in stellar interiors},
author = {Alfio Bonanno and Roberto Casadio and Alessia Platania},
journal= {arXiv preprint arXiv:1910.11393},
year = {2020}
}
Comments
19 pages, 3 figures. V2: minor changes, references added. Matches published version