Angular momentum tail contributions to compact binary dynamics
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866911532021972992 |
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| author | Almeida, Gabriel Luz Müller, Alan Foffa, Stefano Sturani, Riccardo |
| author_facet | Almeida, Gabriel Luz Müller, Alan Foffa, Stefano Sturani, Riccardo |
| contents | We derive the effective action governing the dynamics of a compact binary system when gravitational radiation is emitted by any mass or current multipole, scattered by the quasi-static field associated with the binary's angular momentum, and then reabsorbed. Among such angular momentum failed-tail processes, the ones involving multipole moments up to mass and current octupoles, which mix also with quadrupoles of opposite parity, contribute to the system dynamics at sixth post-Newtonian order; we display these terms explicitly as a particular case of our general derivation. Additionally, we derive the radiative multipole moments associated to arbitrary angular momentum failed-tails in emission processes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_20096 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Angular momentum tail contributions to compact binary dynamics Almeida, Gabriel Luz Müller, Alan Foffa, Stefano Sturani, Riccardo General Relativity and Quantum Cosmology We derive the effective action governing the dynamics of a compact binary system when gravitational radiation is emitted by any mass or current multipole, scattered by the quasi-static field associated with the binary's angular momentum, and then reabsorbed. Among such angular momentum failed-tail processes, the ones involving multipole moments up to mass and current octupoles, which mix also with quadrupoles of opposite parity, contribute to the system dynamics at sixth post-Newtonian order; we display these terms explicitly as a particular case of our general derivation. Additionally, we derive the radiative multipole moments associated to arbitrary angular momentum failed-tails in emission processes. |
| title | Angular momentum tail contributions to compact binary dynamics |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2603.20096 |