Signatures from metastable oppositely-charged black hole binaries in scalar Gauss-Bonnet gravity
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2025
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866913849608765440 |
|---|---|
| author | Lara, Guillermo Corman, Maxence Nee, Peter James Pfeiffer, Harald P. Vu, Nils L. Wittek, Nikolas A. Bonilla, Marceline S. Carpenter, Alexander Deppe, Nils Kidder, Lawrence E. Kumar, Prayush Lovelace, Geoffrey Macedo, Alexandra Mendes, Iago B. Nelli, Kyle C. Scheel, Mark A. Throwe, William |
| author_facet | Lara, Guillermo Corman, Maxence Nee, Peter James Pfeiffer, Harald P. Vu, Nils L. Wittek, Nikolas A. Bonilla, Marceline S. Carpenter, Alexander Deppe, Nils Kidder, Lawrence E. Kumar, Prayush Lovelace, Geoffrey Macedo, Alexandra Mendes, Iago B. Nelli, Kyle C. Scheel, Mark A. Throwe, William |
| contents | We conduct numerical simulations of inspiraling, oppositely-charged black holes in the class of scalar-Gauss-Bonnet theories that exhibit spontaneous black hole scalarization. For quasi-circular, equal-mass binaries near the existence threshold for scalarized solutions, we find a new phenomenon whereby one of the component black holes can suddenly flip the sign of its scalar charge during the inspiral. We confirm this phenomenon with two independent codes and identify two key signatures thereof: a change in the dominant scalar radiation channel (from dipolar to quadrupolar), and, strikingly, the introduction of eccentricity in the orbit. This scenario offers a concrete example of potential nonlinear departures from general relativity in the inspiral of binary black holes in alternative theories of gravity and is of relevance for the development of new tests of gravity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_14785 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Signatures from metastable oppositely-charged black hole binaries in scalar Gauss-Bonnet gravity Lara, Guillermo Corman, Maxence Nee, Peter James Pfeiffer, Harald P. Vu, Nils L. Wittek, Nikolas A. Bonilla, Marceline S. Carpenter, Alexander Deppe, Nils Kidder, Lawrence E. Kumar, Prayush Lovelace, Geoffrey Macedo, Alexandra Mendes, Iago B. Nelli, Kyle C. Scheel, Mark A. Throwe, William General Relativity and Quantum Cosmology We conduct numerical simulations of inspiraling, oppositely-charged black holes in the class of scalar-Gauss-Bonnet theories that exhibit spontaneous black hole scalarization. For quasi-circular, equal-mass binaries near the existence threshold for scalarized solutions, we find a new phenomenon whereby one of the component black holes can suddenly flip the sign of its scalar charge during the inspiral. We confirm this phenomenon with two independent codes and identify two key signatures thereof: a change in the dominant scalar radiation channel (from dipolar to quadrupolar), and, strikingly, the introduction of eccentricity in the orbit. This scenario offers a concrete example of potential nonlinear departures from general relativity in the inspiral of binary black holes in alternative theories of gravity and is of relevance for the development of new tests of gravity. |
| title | Signatures from metastable oppositely-charged black hole binaries in scalar Gauss-Bonnet gravity |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2505.14785 |