Gravitational waves from cosmic strings in LISA: reconstruction pipeline and physics interpretation
We initiate the LISA template databank for stochastic gravitational wave backgrounds sourced by cosmic strings. We include two templates, an analytical template, which enables more flexible searches, and a numerical template derived directly from large Nambu-Goto simulations of string networks. Usin...
| Autores: | , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión enviada para evaluación y publicación |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:dnet:digitalcsic_::456e70967d0f8a20095e47f65708914b |
| Acceso en línea: | http://hdl.handle.net/10261/427934 https://www.scopus.com/inward/record.uri?eid=2-s2.0-105005162103&doi=10.1088%2F1475-7516%2F2025%2F05%2F006&partnerID=40&md5=e232f1839f8396736ef69fc7c4f96cd7 |
| Access Level: | acceso abierto |
| Palabra clave: | Cosmic strings domain walls gravitational wave detectors gravitational waves / sources monopoles |
| Sumario: | We initiate the LISA template databank for stochastic gravitational wave backgrounds sourced by cosmic strings. We include two templates, an analytical template, which enables more flexible searches, and a numerical template derived directly from large Nambu-Goto simulations of string networks. Using searches based on these templates, we forecast the parameter space within the reach of the experiment and the precision with which their parameters will be reconstructed, provided a signal is observed. The reconstruction permits probing the Hubble expansion and new relativistic DoF in the early universe. We quantify the impact that astrophysical foregrounds can have on these searches. Finally, we discuss the impact that these observations would have on our understanding of the fundamental models behind the string networks. Overall, we prove that LISA has great potential for probing cosmic string models and may reach tensions as low as Gμ = 10-16 - 10-17, which translates into energy scales of the order 1011 GeV. © 2025 IOP Publishing Ltd and Sissa Medialab. All rights, including for text and data mining, AI training, and similar technologies, are reserved. |
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