Probing Parity Violation in the Stochastic Gravitational Wave Background with Astrometry
Fuente:
arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866913342111612928 |
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| author | Liang, Qiuyue Lin, Meng-Xiang Trodden, Mark Wong, Sam S. C. |
| author_facet | Liang, Qiuyue Lin, Meng-Xiang Trodden, Mark Wong, Sam S. C. |
| contents | Astrometry holds the potential for testing fundamental physics through the effects of the Stochastic Gravitational Wave Background (SGWB) in the $\sim 1-100$ nHz frequency band on precision measurements of stellar positions. Such measurements are complementary to tests made possible by the detection of the SGWB using Pulsar Timing Arrays. Here, the feasibility of using astrometry for the identification of parity-violating signals within the SGWB is investigated. This is achieved by defining and quantifying a non-vanishing $EB$ correlation function within astrometric correlation functions, and investigating how one might estimate the detectability of such signals. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2309_16666 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Probing Parity Violation in the Stochastic Gravitational Wave Background with Astrometry Liang, Qiuyue Lin, Meng-Xiang Trodden, Mark Wong, Sam S. C. Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology Astrometry holds the potential for testing fundamental physics through the effects of the Stochastic Gravitational Wave Background (SGWB) in the $\sim 1-100$ nHz frequency band on precision measurements of stellar positions. Such measurements are complementary to tests made possible by the detection of the SGWB using Pulsar Timing Arrays. Here, the feasibility of using astrometry for the identification of parity-violating signals within the SGWB is investigated. This is achieved by defining and quantifying a non-vanishing $EB$ correlation function within astrometric correlation functions, and investigating how one might estimate the detectability of such signals. |
| title | Probing Parity Violation in the Stochastic Gravitational Wave Background with Astrometry |
| topic | Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2309.16666 |