activity
20222024
most citedProbing internal dissipative processes of neutron stars with gravitational waves during the inspiral of neutron star binaries

35 citations · 102 across the 8 of their papers we have counts for

collaborators

8 papers

gr-qc2024

Dissipative tidal effects to next-to-leading order and constraints on the dissipative tidal deformability using gravitational wave data

Abhishek Hegade K. R., Justin L. Ripley, Nicolás Yunes

Dissipative tidal interactions can be used to probe the out-of-equilibrium physics of neutron stars using gravitational wave observations. In this paper, we present the first post-…

gr-qc2024

Dynamical tidal response of non-rotating relativistic stars

Abhishek Hegade K. R., Justin L. Ripley, Nicolás Yunes

Accurately modeling the tidal response of neutron stars is crucial to connecting gravitational wave observations of binaries to ultra-dense nuclear physics. Most current models of…

gr-qc2023★ 29 cited

First constraint on the dissipative tidal deformability of neutron stars

Justin L. Ripley, Abhishek Hegade K. R., Rohit S. Chandramouli +1

The gravitational waves (GWs) emitted by neutron star binaries probe the physics of matter at supra nuclear densities. During the late inspiral, tidal deformations raised on each s…

gr-qc2023★ 11 cited

The non-relativistic limit of first-order relativistic viscous fluids

Abhishek Hegade K R, Justin L. Ripley, Nicolás Yunes

Out-of-equilibrium effects may play an important role in the dynamics of neutron star mergers and in heavy-ion collisions. Bemfica, Disconzi, Noronha and Kovtun (BDNK) recently der…

gr-qc2023★ 35 cited

Probing internal dissipative processes of neutron stars with gravitational waves during the inspiral of neutron star binaries

Justin L. Ripley, Abhishek Hegade K. R., Nicolas Yunes

We study the impact of out-of-equilibrium, dissipative effects on the dynamics of inspiraling neutron stars. We find that modeling dissipative processes (such as those from the sta…

gr-qc2022★ 13 cited

How Do Axisymmetric Black Holes Grow Monopole and Dipole Hair?

Abhishek Hegade K R, Elias R. Most, Jorge Noronha +2

We study the dynamical formation of scalar monopole and dipole hair in scalar Gauss-Bonnet theory and dynamical Chern-Simons theory. We prove that the spherically-symmetric mode of…

gr-qc2022

Where and why does Einstein-Scalar-Gauss-Bonnet theory break down?

Abhishek Hegade K R, Justin L. Ripley, Nicolás Yunes

We present a systematic exploration of the loss of predictivity in Einstein-scalar-Gauss-Bonnet (ESGB) gravity. We first formulate a gauge covariant method of characterizing the br…

gr-qc2022★ 14 cited

How Do Spherical Black Holes Grow Monopole Hair?

Abhishek Hegade K. R., Elias R. Most, Jorge Noronha +2

Black holes in certain modified gravity theories that contain a scalar field coupled to curvature invariants are known to possess (monopole) scalar hair while non-black-hole spacet…