2 papers
gr-qc2026
Quadrupolar bremsstrahlung waveform at the third-and-a-half post-Newtonian accuracy
Donato Bini, Thibault Damour, Andrea Geralico
We study the quadrupolar part of the gravitational waveform (encoded in the helicity-( radiative quadrupole moment $U_2 = \frac{1}{2!} \bar m^{i} \bar m^{j } U_{i j}…
gr-qc2025
Nariai spacetime: orbits, scalar self force and Poynting-Robertson-like external force
Donato Bini, Giampiero Esposito
After studying properties of the Nariai solution, including its geodesics, in spherical and de Sitter coordinates, two kinds of accelerated motion are investigated in detail: eithe…