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When Can Pulsar Timing Distinguish a Propagation Mass from a Weak Longitudinal Background? — arXiv:2611.08382

Source: arXiv (en)
Original: https://arxiv.org/abs/2611.08382
License (as archived): CC0-1.0
Archived: 2026-11-06T14:56:50.430Z
SHA-256 of the archived text: 6f8ff2450551114964f2b2f19031b67829b02fb7d3eb0987274983999725596e
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How to cite

When Can Pulsar Timing Distinguish a Propagation Mass from a Weak Longitudinal Background? — arXiv:2611.08382 — arXiv (en), https://arxiv.org/abs/2611.08382 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_d0e23d791663 (Metraipolis archive dc_d0e23d791663, sha256 6f8ff2450551114964f2b2f19031b67829b02fb7d3eb0987274983999725596e)

BibTeX

@misc{dcd0e23d791663,
  title = {When Can Pulsar Timing Distinguish a Propagation Mass from a Weak Longitudinal Background? — arXiv:2611.08382},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2611.08382},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_d0e23d791663; sha256 6f8ff2450551114964f2b2f19031b67829b02fb7d3eb0987274983999725596e},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2611.08382. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

A weak longitudinal background can imitate the angular response of a gravitational-wave propagation mass. We quantify this ambiguity in a compressed Gaussian experiment constructed from the NANOGrav 15-year timing data. At a false-alarm probability of $10^{-3}$, allowing a weak longitudinal component in a massless background costs at least 16.29 percentage points of optimal rejection power for a specified source in a 20-pulsar subarray. Expanding the array to 40 pulsars at the same background level recovers at least 7.62 points. In a separate low-background experiment, we allow the same continuous range of longitudinal amplitudes at zero and positive mass. Across that range and three injected background levels, one test rejects zero mass with at least 97.38\% power at either of two masses separated by 1.08\%. With false assignment limited to $10^{-3}$ at the other mass, the power to identify either mass is at most 1.584\%. A cutoff can thus be identifiable before its position within a frequency cell can be resolved.

Tema degli esploratori: fisica e astronomia (elenco arXiv gr-qc, nuovi lavori del giorno).
Categorie arXiv: General Relativity and Quantum Cosmology (gr-qc).
Pagina del lavoro: https://arxiv.org/abs/2611.08382 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-11-06T14:39:06.039Z dalla pagina https://arxiv.org/list/gr-qc/new (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).