No Pulsar Timing Noise from Brownian Motion of the Sun
Fuente:
arXiv
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| Autor principal: | |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866909321293463552 |
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| author | Cline, James M. |
| author_facet | Cline, James M. |
| contents | It was recently claimed (arXiv:2405.05410 [gr-qc]) that evidence for a stochastic gravitational wave background observed by pulsar timing arrays can be attributed instead to random perturbations of the Sun's motion by transiting asteroids. I show that that this would lead to a large dipole component accompanying a much smaller quadrupolar perturbation of pulsar timing signals, which would not be confused with a gravitational wave signal. Such an anomalous dipole would have been detected and identified as a spurious background by the PTA collaborations, if it existed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_13692 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | No Pulsar Timing Noise from Brownian Motion of the Sun Cline, James M. General Relativity and Quantum Cosmology Earth and Planetary Astrophysics Solar and Stellar Astrophysics It was recently claimed (arXiv:2405.05410 [gr-qc]) that evidence for a stochastic gravitational wave background observed by pulsar timing arrays can be attributed instead to random perturbations of the Sun's motion by transiting asteroids. I show that that this would lead to a large dipole component accompanying a much smaller quadrupolar perturbation of pulsar timing signals, which would not be confused with a gravitational wave signal. Such an anomalous dipole would have been detected and identified as a spurious background by the PTA collaborations, if it existed. |
| title | No Pulsar Timing Noise from Brownian Motion of the Sun |
| topic | General Relativity and Quantum Cosmology Earth and Planetary Astrophysics Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2409.13692 |