18 papers
Living on the Edge of Effective Field Theory: Near-Extremal Black Holes in Quadratic Gravity
Kelvin Ka-Ho Lam, Gary T. Horowitz, Nicolás Yunes
Near-extremal black holes can amplify higher-derivative corrections to general relativity, making them sharp probes of the perturbative control of gravitational effective field the…
Measuring a Black Hole's Area Immediately after Merger: A Direct-Wave Test of Hawking's Area Law
Adrian Ka-Wai Chung, Kelvin Ka-Ho Lam, Anna Liu +1
Black-hole area is the geometric variable behind horizon thermodynamics. We introduce a gravitational-wave method to infer a Kerr-equivalent horizon area from direct waves in the n…
A relativistic treatment of accretion disk torques on extreme mass ratio inspirals around spinning black holes
Abhishek Hegade K. R., Charles F. Gammie, Nicolás Yunes
We model the motion of a small compact object on a nearly circular orbit around a spinning supermassive black hole, which is also interacting with a thin equatorial accretion-disk…
Relativistic and Dynamical Love
Abhishek Hegade K. R., K. J. Kwon, Tejaswi Venumadhav +2
Gravitational waves emitted in the late inspiral of binary neutron stars are affected by their tidal deformation. We study the tidal dynamics in full general relativity through mat…
Dark Matter Clumps as Sources of Gravitational-Wave Glitches in LIGO/Virgo/KAGRA data
Ezequiel Alvarez, Scott Perkins, Federico Ravanedo +1
We consider the hypothetical possibility that non-stationary glitch features in the noise of ground-based gravitational-wave detectors could be produced by small dark matter clumps…
A relativistic treatment of accretion disk torques on extreme mass-ratio inspirals around non-spinning black holes
Abhishek Hegade K. R., Charles F. Gammie, Nicolás Yunes
We develop a relativistically accurate formalism to model the interaction between stellar mass compact objects embedded in thin accretion disks around a non-spinning supermassive b…