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Projecting the likely importance of weak-interaction-driven bulk viscosity in neutron star mergers
Elias R. Most, Steven P. Harris, Christopher Plumberg +6
In this work, we estimate how much bulk viscosity driven by Urca processes is likely to affect the gravitational wave signal of a neutron star coalescence. In the late inspiral, we…
The missing link in gravitational-wave astronomy: A summary of discoveries waiting in the decihertz range
Manuel Arca Sedda, Christopher P L Berry, Karan Jani +25
Since 2015 the gravitational-wave observations of LIGO and Virgo have transformed our understanding of compact-object binaries. In the years to come, ground-based gravitational-wav…
Petrov Type, Principal Null Directions, and Killing Tensors of Slowly-Rotating Black Holes in Quadratic Gravity
Caroline B. Owen, Nicolás Yunes, Helvi Witek
The ability to test general relativity in extreme gravity regimes using gravitational wave observations from current ground-based or future space-based detectors motivates the math…
Square Peg in a Circular Hole: Choosing the Right Ansatz for Isolated Black Holes in Generic Gravitational Theories
Yiqi Xie, Jun Zhang, Hector O. Silva +3
The metric of a spacetime can be greatly simplified if the spacetime is circular. We prove that in generic effective theories of gravity, the spacetime of a stationary, axisymmetri…