Complete Gravitational-Wave Spectrum of the Sun

García-Cely, Camilo; Ringwald, Andreas

doi:10.1103/gtwg-pr41

Journal Article

PUBDB-2025-03633

Complete Gravitational-Wave Spectrum of the Sun

García-Cely, C. (Corresponding author) ; Ringwald, A. (Corresponding author)DESY*

2025
APS College Park, Md.

Physical review letters 135(6), 061001 (2025) [10.1103/gtwg-pr41]

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Please use a persistent id in citations: doi:10.1103/gtwg-pr41 doi:10.3204/PUBDB-2025-03633

Report No.: DESY-24-111; arXiv:2407.18297

Abstract: The high-temperature plasma in the solar interior generates stochastic gravitational waves (GWs). Owing to its significance as the primary source of high-frequency GWs in the Solar System, we reexamine this phenomenon by highlighting some physical processes, including the contribution of macroscopic hydrodynamic fluctuations. Our analysis builds upon several studies of axion emission from the Sun, particularly in relation to the treatment of plasma effects. The resulting GW spectrum is comparable to many well-motivated early-Universe signals, yet orders of magnitude below the current sensitivities of axion helioscopes such as (Baby)IAXO.

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ddc:530

Note: v2: published version

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Theorie-Gruppe (T)

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Appears in the scientific report 2025

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