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Three-Hair Relations for Rotating Stars: Nonrelativistic Limit
Leo C. Stein, Kent Yagi, Nicolas Yunes
The gravitational field outside of astrophysical black holes is completely described by their mass and spin frequency, as expressed by the no-hair theorems. These theorems assume v…
Constraints on Einstein-Æther theory and Horava gravity from binary pulsar observations
Kent Yagi, Diego Blas, Enrico Barausse +1
Binary pulsars are ideal to test the foundations of General Relativity, such as Lorentz symmetry, which requires that experiments produce the same results in all free-falling (i.e.…
Multipole Love Relations
Kent Yagi
Gravitational-wave observations in the near future may allow us to measure tidal deformabilities of neutron stars, which leads us to the understanding of physics at nuclear density…
Love can be Tough to Measure
Kent Yagi, Nicolas Yunes
The waveform phase for a neutron star binary can be split into point-particle terms and finite-size terms (characterized by the Love number) that account for equation of state effe…
Parametrizing and constraining scalar corrections to general relativity
Leo C. Stein, Kent Yagi
We parametrize a large class of corrections to general relativity which include a long-ranged gravitational scalar field as a dynamical degree of freedom in two ways: parametrizing…
Linear Stability Analysis of Dynamical Quadratic Gravity
Dimitry Ayzenberg, Kent Yagi, Nicolas Yunes
We perform a linear stability analysis of dynamical, quadratic gravity in the high-frequency, geometric optics approximation. This analysis is based on a study of gravitational and…