39 citations · 102 across the 9 of their papers we have counts for
9 papers
Universal Structure of Horizon Formation in Generic Binary Black Hole Mergers
Yu-Cun Xie, Vaishak Prasad
We derive the local structure of the first common apparent horizon in a generic binary-black-hole merger. This event occurs in the fully nonlinear regime, outside the standard regi…
NRHJSur3dq8: a spectral numerical-relativity surrogate family for non-eccentric aligned-spin binary-black-hole waveforms
Vaishak Prasad
We present NRHJSur3dq8, a family of numerical-relativity (NR) surrogates for non-eccentric aligned-spin binary-black-hole waveforms inspired by an action-angle parameterization. Th…
The Lunar Gravitational-wave Antenna: Mission Studies and Science Case
Parameswaran Ajith, Pau Amaro Seoane, Manuel Arca Sedda +83
The Lunar Gravitational-wave Antenna (LGWA) is a proposed array of next-generation inertial sensors to monitor the response of the Moon to gravitational waves (GWs). Given the size…
The Shear at the Common Dynamical Horizon in Binary Black Hole Mergers and its Imprint in their Gravitational Radiation
Vaishak Prasad
We study the correlation between a part of the gravitational field at the common dynamical horizon in the strong field regime and the news of the gravitational radiation received f…
Generalized source multipole moments of dynamical horizons in binary black hole mergers
Vaishak Prasad
In this work, we uncover new features in the evolution of the deformations of the dynamical horizon geometry in a binary black hole merger scenario using numerical relativity. Firs…
Ecosystem for Closed Timelike Curves: An Energy Conditions Perspective
Sashideep Gutti, Shailesh Kulkarni, Vaishak Prasad +1
In this article, we explore the relationship between the existence of closed timelike curves and energy conditions that occur in the Kerr-Newman spacetime. To quantify the dependen…
Tidal deformation of dynamical horizons in binary black hole mergers
Vaishak Prasad, Anshu Gupta, Sukanta Bose +1
An important physical phenomenon that manifests itself during the inspiral of two orbiting compact objects is the tidal deformation of each under the gravitational influence of its…
News from horizons in binary black hole mergers
Vaishak Prasad, Anshu Gupta, Sukanta Bose +2
In a binary black hole merger, it is known that the inspiral portion of the waveform corresponds to two distinct horizons orbiting each other, and the merger and ringdown signals c…
Causality Aspects of Modified Kerr-Newman spacetimes
Vaishak Prasad, Rahul Srinivasan, Sashideep Gutti
In this paper, we address the problem of causality violation in the solutions of Einstein equations and seek possible causality restoration mechanisms in modifed theories of gravit…