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Updated: Sep 10, 2025

Surface Mapping of Earth-like Exoplanets using Single Point Light Curves
Published on: May 10, 2020
Complete Gravitational-Wave Spectrum of the Sun
Camilo García-Cely1, Andreas Ringwald2
1Instituto de Física Corpuscular (IFIC), Universitat de València-CSIC, Parc Científic UV, Carrer del Catedrático José Beltrán 2, E-46980 Paterna, Spain.
None:
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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