Journée des groupes de travail "Formes d'onde" et “Tests de la relativité générale et théories alternatives” du GdR Ondes Gravitationnelles

Liste des Contributions

5. Analytical solution of spinning and eccentric binary black holes at 2PN

Tom Colin (LUX)

27/05/2026 09:45

6. Constants of motion for elliptic orbits: fourth post-Newtonian order and first self-force order

David Trestini (IAP (Sorbonne Université), LUTH (Observatoire de Meudon))

27/05/2026 10:15

TBA

7. Radiation-Reaction Correction to Scattering Binary Dynamics at Next-to-Leading Post-Newtonian Order

Sara Rufrano Aliberti (Scuola Superiore Meridionale)

27/05/2026 10:45

Radiation-reaction force encodes dissipative effects in a binary system emitting gravitational waves. Within the post-Newtonian framework, radiation-reaction terms enter the equations of motion starting at 2.5PN order and affect the system’s dynamics accordingly. These effects can be incorporated as corrections to the quasi-Keplerian orbital parameters in the center-of-mass frame. In this...

8. Gravitational radiation reaction for compact binary systems at 4.5 post-Newtonian order

Emeric Seraille (École Normale Supérieure, IAP)

27/05/2026 11:15

Compact binaries are the primary sources of gravitational waves measured by gravitational-wave detectors. In this context, obtaining the equations of motion in different approximation schemes is essential for producing waveform templates with the accuracy required by future detections, constituting a precision test of general relativity.
In this presentation, I derive the gravitational...

9. xHam: A Mathematica package for Hamiltonian Analysis

Joffrey Le Grix de la Salle

27/05/2026 13:30

10. Beyond circles: stationary axisymmetric black holes and the breaking of circularity

Jacopo Mazza (IJCLab)

27/05/2026 14:00

Circularity is an accidental symmetry of the Kerr metric, one that is widely assumed when searching for rotating black hole solutions in modified gravity as well as when constructing models of Kerr mimickers. Though extremely enticing, circularity is often an excessively restrictive assumption, and understanding the consequences of its loss is thus crucially relevant. In this seminar, I wish...

11. Time- and frequency-domain waveform models for the gravitational-wave memory effect

Arwa Elhashash (LUX, CNRS, Observatoire de Paris)

27/05/2026 14:30

The nonlinear gravitational-wave (GW) memory effect is a strong-field gravitational phenomenon that arises from interactions between the GWs with themselves.
This effect manifests as a lasting offset in the GW strain that persists after the passage of a GW.
Although the detection of the memory effect is challenging because the signal is relatively weak (compared to the dominant quadrupolar...