Generic Peculiar Motions in FLRW Spacetimes
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arXiv
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866917501898588160 |
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| author | Mashhoon, Bahram |
| author_facet | Mashhoon, Bahram |
| contents | In the standard Friedmann-Lemaître-Robertson-Walker (FLRW) spacetime, we consider a local cosmic test mass that is boosted in some direction relative to the standard comoving observers. The geodesic (Fermi) normal coordinate system established around the world line of the boosted cosmic mass is constructed within an approximation scheme and the resulting spacetime metric is compared with the corresponding metric of the Fermi system established around the world line of a comoving observer. The circular gravitomagnetic field around the direction of motion of the boosted cosmic mass is studied. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2605_05265 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Generic Peculiar Motions in FLRW Spacetimes Mashhoon, Bahram General Relativity and Quantum Cosmology In the standard Friedmann-Lemaître-Robertson-Walker (FLRW) spacetime, we consider a local cosmic test mass that is boosted in some direction relative to the standard comoving observers. The geodesic (Fermi) normal coordinate system established around the world line of the boosted cosmic mass is constructed within an approximation scheme and the resulting spacetime metric is compared with the corresponding metric of the Fermi system established around the world line of a comoving observer. The circular gravitomagnetic field around the direction of motion of the boosted cosmic mass is studied. |
| title | Generic Peculiar Motions in FLRW Spacetimes |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2605.05265 |