Limits on High-Frequency Gravitational Waves in Planetary Magnetospheres
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arXiv
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| Format: | Preprint |
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2023
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| _version_ | 1866914734849130496 |
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| author | Liu, Tao Ren, Jing Zhang, Chen |
| author_facet | Liu, Tao Ren, Jing Zhang, Chen |
| contents | High-frequency gravitational waves (HFGWs) carry a wealth of information on the early Universe with a tiny comoving horizon and astronomical objects of small scale but with dense energy. We demonstrate that the nearby planets, such as Earth and Jupiter, can be utilized as a laboratory for detecting the HFGWs. These GWs are then expected to convert to signal photons in the planetary magnetosphere, across the frequency band of astronomical observation. As a proof of concept, we present the first limits from the existing low-Earth-orbit satellite for specific frequency bands and project the sensitivities for the future more-dedicated detections. The first limits from Juno, the latest mission orbiting Jupiter, are also presented. Attributed to the long path of effective GW-photon conversion and the wide angular distribution of signal flux, we find that these limits are highly encouraging, for a broad frequency range including a large portion unexplored before. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2305_01832 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Limits on High-Frequency Gravitational Waves in Planetary Magnetospheres Liu, Tao Ren, Jing Zhang, Chen High Energy Physics - Phenomenology High-frequency gravitational waves (HFGWs) carry a wealth of information on the early Universe with a tiny comoving horizon and astronomical objects of small scale but with dense energy. We demonstrate that the nearby planets, such as Earth and Jupiter, can be utilized as a laboratory for detecting the HFGWs. These GWs are then expected to convert to signal photons in the planetary magnetosphere, across the frequency band of astronomical observation. As a proof of concept, we present the first limits from the existing low-Earth-orbit satellite for specific frequency bands and project the sensitivities for the future more-dedicated detections. The first limits from Juno, the latest mission orbiting Jupiter, are also presented. Attributed to the long path of effective GW-photon conversion and the wide angular distribution of signal flux, we find that these limits are highly encouraging, for a broad frequency range including a large portion unexplored before. |
| title | Limits on High-Frequency Gravitational Waves in Planetary Magnetospheres |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2305.01832 |