activity
20192025
most citedBrans-Dicke theory in Bondi-Sachs form: Asymptotically flat solutions, asymptotic symmetries and gravitational-wave memory effects

47 citations · 134 across the 8 of their papers we have counts for

collaborators

10 papers

gr-qc2025

Inspiral-Transition-Plunge Gravitational Waveforms Beyond Kerr: A Kerr-Newman Case Study

Daiki Watarai, Kent Yagi, Shammi Tahura

Binary black hole mergers with asymmetric component masses are key targets for both third-generation ground-based and future space-based gravitational-wave (GW) detectors, offering…

gr-qc2025★ 5 cited

Gravitational-wave memory effects in the Damour-Esposito-Farèse extension of Brans-Dicke theory

Shammi Tahura, David A. Nichols, Kent Yagi

Gravitational-wave memory effects are lasting changes in the strain and its time integrals. They can be computed in asymptotically flat spacetimes using the conservation and evolut…

astro-ph.HE2023

Fundamental Physics Opportunities with the Next-Generation Event Horizon Telescope

Dimitry Ayzenberg, Lindy Blackburn, Richard Brito +45

The Event Horizon Telescope (EHT) Collaboration recently published the first images of the supermassive black holes in the cores of the Messier 87 and Milky Way galaxies. These obs…

gr-qc2023★ 5 cited

Vacuum Spacetime With Multipole Moments: The Minimal Size Conjecture, Black Hole Shadow, and Gravitational Wave Observables

Shammi Tahura, Hassan Khalvati, Huan Yang

In this work, we explicitly construct the vacuum solution of Einstein's equations with prescribed multipole moments. By observing the behavior of the multipole spacetime metric at…

gr-qc2022★ 5 cited

Gravitational-wave energy and other fluxes in ghost-free bigravity

Alexander M. Grant, Alexander Saffer, Leo C. Stein +1

One of the key ingredients for making binary waveform predictions in a beyond-GR theory of gravity is understanding the energy and angular momentum carried by gravitational waves a…

astro-ph.HE2022★ 4 cited

Science Potential for Stellar-mass Black Holes as Neighbors of Sgr A*

Shammi Tahura, Zhen Pan, Huan Yang

It has been suggested that there is possibly a class of stellar-mass black holes (BHs) residing near (distance ) the galactic center massive black hole, Sgr A*. Possibl…