Spinning Black Holes in Modified Gravity via Spectral Methods
Fuente:
arXiv
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866918294378774528 |
|---|---|
| author | Lam, Kelvin Ka-Ho Chung, Adrian Ka-Wai Yunes, Nicolás |
| author_facet | Lam, Kelvin Ka-Ho Chung, Adrian Ka-Wai Yunes, Nicolás |
| contents | Rapidly-rotating black-hole spacetimes outside general relativity are key to many tests of Einstein's theory. We here develop an efficient spectral method to represent such spacetimes analytically, in closed-form, and to high accuracy, in a large class of effective-field-theory extensions of general relativity. We exemplify this method by constructing, for the first time, closed-form and analytic representations of spinning black holes in scalar-Gauss-Bonnet, dynamical Chern-Simons, and axidilaton gravity to an accuracy better than $10^{-8}$ for all dimensionless spins below 0.99. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_07061 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Spinning Black Holes in Modified Gravity via Spectral Methods Lam, Kelvin Ka-Ho Chung, Adrian Ka-Wai Yunes, Nicolás General Relativity and Quantum Cosmology Rapidly-rotating black-hole spacetimes outside general relativity are key to many tests of Einstein's theory. We here develop an efficient spectral method to represent such spacetimes analytically, in closed-form, and to high accuracy, in a large class of effective-field-theory extensions of general relativity. We exemplify this method by constructing, for the first time, closed-form and analytic representations of spinning black holes in scalar-Gauss-Bonnet, dynamical Chern-Simons, and axidilaton gravity to an accuracy better than $10^{-8}$ for all dimensionless spins below 0.99. |
| title | Spinning Black Holes in Modified Gravity via Spectral Methods |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2509.07061 |