Probing deviations to Kerr geometry with extreme mass-ratio inspirals
Fuente:
arXiv
Saved in:
| Main Author: | |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866916433573707776 |
|---|---|
| author | Kumar, Shailesh |
| author_facet | Kumar, Shailesh |
| contents | One of the primary research aims of the Laser Interferometer Space Antenna (LISA) mission is to comprehensively map the Kerr spacetime, a fundamental pursuit in the realm of general relativity. To achieve this goal, it is essential to develop precise tools capable of discerning any deviations from the Kerr geometry. Extreme mass-ratio inspirals (EMRIs) stand out as particularly promising sources for probing the spacetime metric, offering profound insights into gravitational phenomena. In this direction, we analyze a deformed Kerr geometry, being the central source of an EMRI system, with an inspiralling object that exhibits eccentric equatorial motion. We conduct a leading-order post-Newtonian analysis and examine the deviations in gravitational wave flux and phase with their leading-order contributions. Our findings evaluate the detectability of these deviations through gravitational wave dephasing and mismatch, highlighting the pivotal role of LISA observations in advancing our understanding of spacetime geometry. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_08544 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Probing deviations to Kerr geometry with extreme mass-ratio inspirals Kumar, Shailesh General Relativity and Quantum Cosmology High Energy Physics - Theory One of the primary research aims of the Laser Interferometer Space Antenna (LISA) mission is to comprehensively map the Kerr spacetime, a fundamental pursuit in the realm of general relativity. To achieve this goal, it is essential to develop precise tools capable of discerning any deviations from the Kerr geometry. Extreme mass-ratio inspirals (EMRIs) stand out as particularly promising sources for probing the spacetime metric, offering profound insights into gravitational phenomena. In this direction, we analyze a deformed Kerr geometry, being the central source of an EMRI system, with an inspiralling object that exhibits eccentric equatorial motion. We conduct a leading-order post-Newtonian analysis and examine the deviations in gravitational wave flux and phase with their leading-order contributions. Our findings evaluate the detectability of these deviations through gravitational wave dephasing and mismatch, highlighting the pivotal role of LISA observations in advancing our understanding of spacetime geometry. |
| title | Probing deviations to Kerr geometry with extreme mass-ratio inspirals |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2410.08544 |