7 papers
A Maximum Entropy Conjecture for Black Hole Mergers
Monica Rincon-Ramirez, Nathan K. Johnson-McDaniel, Eugenio Bianchi +3
The final state of a binary black hole merger is predicted with high precision by numerical relativity, but could there be a simple thermodynamic principle within general relativit…
Effect of Type II Strong Gravitational Lensing on Tests of General Relativity
Purnima Narayan, Nathan K. Johnson-McDaniel, Anuradha Gupta
Gravitational wave (GW) observations of binary black hole (BBH) coalescences provide a unique opportunity to test general relativity (GR) in the strong-field regime. To ensure the…
Evolution of precessing binary black holes on eccentric orbits using orbit-averaged evolution equations
Khun Sang Phukon, Nathan K. Johnson-McDaniel, Amitesh Singh +1
The most general bound binary black hole (BBH) system has an eccentric orbit and precessing spins. The detection of such a system with significant eccentricity close to the merger…
Tracing the evolution of eccentric precessing binary black holes: a hybrid approach
Amitesh Singh, Nathan K. Johnson-McDaniel, Anuradha Gupta +1
To describe a general bound binary black hole system, we need to consider orbital eccentricity and the misalignment of black holes' spin vectors with respect to the orbital angular…
New gravitational waveform model for precessing binary neutron stars with double-spin effects
Marta Colleoni, Felip A. Ramis Vidal, Nathan K. Johnson-McDaniel +3
We present two new frequency-domain gravitational waveform models for the analysis of signals emitted by binary neutron star coalescences: IMRPhenomXAS_NRTidalv2 and IMRPhenomXP_NR…
Possible Causes of False General Relativity Violations in Gravitational Wave Observations
Anuradha Gupta, K. G. Arun, Enrico Barausse +40
General relativity (GR) has proven to be a highly successful theory of gravity since its inception. The theory has thrivingly passed numerous experimental tests, predominantly in w…