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Binary Love Relations
Kent Yagi, Nicolas Yunes
When in a tight binary, the mutual tidal deformations of neutron stars imprint onto observables, encoding information about their internal structure at supranuclear densities and g…
Challenging the Presence of Scalar Charge and Dipolar Radiation in Binary Pulsars
Kent Yagi, Leo C. Stein, Nicolas Yunes
Corrections to general relativity that introduce long-ranged scalar fields which are non-minimally coupled to curvature typically predict that neutron stars possess a non-trivial s…
Gravitational-wave emission in shift-symmetric Horndeski theories
Enrico Barausse, Kent Yagi
Gravity theories beyond General Relativity typically predict dipolar gravitational emission by compact-star binaries. This emission is sourced by "sensitivity" parameters depending…
Probing the Internal Composition of Neutron Stars with Gravitational Waves
Katerina Chatziioannou, Kent Yagi, Antoine Klein +2
Gravitational waves from neutron star binary inspirals contain information about the equation of state of supranuclear matter. In the absence of definitive experimental evidence th…
Four-Hair Relations for Differentially Rotating Neutron Stars in the Weak-Field Limit
Joseph Bretz, Kent Yagi, Nicolas Yunes
The opportunity to study physics at supra-nuclear densities through X-ray observations of neutron stars has led to in-depth investigations of certain approximately universal relati…
Improved Universality in the Neutron Star Three-Hair Relations
Barun Majumder, Kent Yagi, Nicolas Yunes
No-hair like relations between the multipole moments of the exterior gravitational field of neutron stars have recently been found to be approximately independent of the star's int…