Radial fall: the gravitational waveform up to the second-and-half Post-Newtonian order
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , |
|---|---|
| Format: | Preprint |
| Publié: |
2026
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866912998048661504 |
|---|---|
| author | Bini, Donato Di Russo, Giorgio |
| author_facet | Bini, Donato Di Russo, Giorgio |
| contents | We consider an application of the Multipolar Post Minkowskian formalism to the case of a two-body system in radial fall. We compute, within the post-Newtonian approximation, the associated gravitational waveform reaching the 2.5 Post-Newtonian accuracy level. At this level the presence of a radiation-reaction force manifests, modifying the fall with a corresponding bremsstrahlung radiation. We evaluate then all emissions: energy, angular momentum (vanishing identically) and linear momentum. We also evaluate the (nonlocal) inertial forces contributions appearing (at the next PN order, 4.5PN) in the center-of-mass due to the losses paving the way for future more accurate computations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_01699 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Radial fall: the gravitational waveform up to the second-and-half Post-Newtonian order Bini, Donato Di Russo, Giorgio General Relativity and Quantum Cosmology We consider an application of the Multipolar Post Minkowskian formalism to the case of a two-body system in radial fall. We compute, within the post-Newtonian approximation, the associated gravitational waveform reaching the 2.5 Post-Newtonian accuracy level. At this level the presence of a radiation-reaction force manifests, modifying the fall with a corresponding bremsstrahlung radiation. We evaluate then all emissions: energy, angular momentum (vanishing identically) and linear momentum. We also evaluate the (nonlocal) inertial forces contributions appearing (at the next PN order, 4.5PN) in the center-of-mass due to the losses paving the way for future more accurate computations. |
| title | Radial fall: the gravitational waveform up to the second-and-half Post-Newtonian order |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2604.01699 |