Seismicity on tidally active solid-surface worlds
| Autor: | Mark P. Panning, Terry Hurford, Simon A. Kattenhorn, Ross Maguire, Lynnae C. Quick, Nicholas Schmerr, Veronica J. Bray, Michael Manga, Alyssa Rhoden, Wade G. Henning, Vedran Lekic |
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| Rok vydání: | 2020 |
| Předmět: |
Solar System
010504 meteorology & atmospheric sciences Solid surface Astronomy and Astrophysics Geophysics Dissipation Induced seismicity 01 natural sciences Exoplanet Article Physics::Geophysics Orbit Stars Space and Planetary Science Planet 0103 physical sciences Physics::Space Physics Astrophysics::Earth and Planetary Astrophysics 010303 astronomy & astrophysics Geology 0105 earth and related environmental sciences |
| Zdroj: | Icarus |
| ISSN: | 0019-1035 |
| Popis: | Tidal interactions between planets or stars and the bodies that orbit them dissipate energy in their interiors. The dissipated energy heats the interior and a fraction of that energy will be released as seismic energy. Here we formalize a model to describe the tidally-driven seismic activity on planetary bodies based on tidal dissipation. To constrain the parameters of our model we use the seismic activity of the Moon, driven by tidal dissipation from the Earth-Moon interactions. We then apply this model to predict the amount of seismic energy release and largest seismic events on other moons in our Solar System and exoplanetary bodies. We find that many moons in the Solar System should be more seismically active than the Earth's Moon and many exoplanets should exhibit more seismic activity than the Earth. Finally, we examine how temporal-spatial variations in tidal dissipation manifest as variations in the locations and timing of seismic events on these bodies. |
| Databáze: | OpenAIRE |
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