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Full analytical approximation to the stochastic gravitational wave background generated by cosmic string networks

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arxiv 2002.01079 v1 pith:7PDUUY3R submitted 2020-02-04 astro-ph.CO hep-th

Lara Sousa , Pedro P. Avelino , Guilherme S. F. Guedes This is my paper · ORCID
classification astro-ph.COhep-th
keywords approximationbackgroundcosmicfullgeneratedgravitationalloopsstochastic
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We derive a full analytical approximation to the stochastic gravitational wave background generated by the loops that are produced throughout the cosmological evolution of cosmic string networks. We show that this approximation not only predicts the amplitude of the radiation-era plateau exactly, but also provides a good fit to the high-frequency cut-off and to the low-frequency peak generated by the loops that decay during the matter era, irrespective of cosmic string tension and of the length of loops created. We then find that it provides a good quantitative description of the full stochastic gravitational wave background across the relevant frequency range.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Searching Stochastic Gravitational Wave Background Landscape Across Frequency Bands

    gr-qc 2025-11 conditional novelty 5.0 of 10

    A hybrid cosmic string–domain wall model can fit the NANOGrav 15-year signal, and its high-frequency tail lies within LISA's projected reach, making the interpretation testable.

  2. Cosmic string gravitational wave backgrounds at LISA: I. Signal survey, template reconstruction, and model comparison

    astro-ph.CO 2025-08 unverdicted novelty 5.0 of 10

    As provided, the manuscript body (random lasing) does not correspond to the abstract (cosmic string gravitational wave backgrounds at LISA), leaving the abstract's quantitative claims unsupported by any accessible text.

  3. Gravitational waves from metastable cosmic strings in the delayed scaling scenario

    astro-ph.CO 2025-01 conditional novelty 5.0 of 10

    Metastable cosmic strings with delayed scaling can explain the PTA gravitational wave background with tension up to Gmu ~ 3e-5 while evading LVK bounds, producing a plateau and an f^-1/3 tail detectable by future inte...

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