Quadrupole Moments of Rapidly Rotating Compact Objects in Dilatonic Einstein-Gauss-Bonnet Theory
arXiv:1407.6884 · doi:10.1103/PhysRevD.90.061501
Abstract
We consider rapidly rotating black holes and neutron stars in dilatonic Einstein-Gauss-Bonnet (EGBd) theory and determine their quadrupole moments, which receive a contribution from the dilaton. The quadrupole moment of EGBd black holes can be considerably larger than the Kerr value. For neutron stars, the universality property of the - relation between the scaled moment of inertia and the scaled quadrupole moment appears to extend to EGBd theory.
5 pages, 4 figures
References in corpus (5)
- Rotating Black Holes in Dilatonic Einstein-Gauss-Bonnet Theory
- Are black holes in alternative theories serious astrophysical candidates? The case for Einstein-Dilaton-Gauss-Bonnet black holes
- Wormholes as Black Hole Foils
- Analytical representations of unified equations of state of neutron-star matter
- New Constraint on Scalar Gauss-Bonnet Gravity and a Possible Explanation for the Excess of the Orbital Decay Rate in a Low-Mass X-ray Binary