activity
20242026
collaborators

5 papers

gr-qc2026

Gravitational Waves from Green's Function Decomposition for a Kerr black hole: I. Equatorial ISCO Plunge

Junquan Su, Neev Khera, Abhishek Chowdhuri +2

We present a decomposition of the Kerr Green's function in the time domain, motivated by the frequency-domain split previously studied in the Schwarzschild limit. We show that the…

gr-qc2026

Decomposition of Schwarzschild Green's Function

Junquan Su, Neev Khera, Marc Casals +3

We present a formulation of the spherically decomposed Green's function for a Schwarzschild black hole, based on a decomposition into two components, and , based on thei…

gr-qc2025

Gravitational memory meets astrophysical environments: exploring a new frontier through osculations

Rishabh Kumar Singh, Shailesh Kumar, Abhishek Chowdhuri +1

We study how dark matter environments influence nonlinear gravitational memory from intermediate-mass-ratio binaries. Incorporating environmental effects from the dark matter gravi…

gr-qc2025

Quasi-Keplerian parametrization for compact binaries on hyperbolic orbits in scalar-tensor theories at second post-Newtonian order

Davide Usseglio, David Trestini, Abhishek Chowdhuri

We obtain the generalized quasi-Keplerian parametrization for compact binaries on quasihyperbolic orbits at second post-Newtonian (2PN) order in a class of massless scalar-tensor t…

gr-qc2024

Exploring waveforms with non-GR deviations for extreme mass-ratio inspirals

Shailesh Kumar, Rishabh Kumar Singh, Abhishek Chowdhuri +1

The fundamental process of detecting and examining the polarization modes of gravitational waves plays a pivotal role in enhancing our grasp on the precise mechanisms behind their…