تقرير
Effects of Spin-Orbit Resonances and Tidal Heating on the Inner Edge of the Habitable Zone
| العنوان: | Effects of Spin-Orbit Resonances and Tidal Heating on the Inner Edge of the Habitable Zone |
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| المؤلفون: | Christopher M. Colose, Jacob Haqq-Misra, Eric T. Wolf, Anthony D. Del Genio, Rory Barnes, Michael J. Way, Reto Ruedy |
| المصدر: | The Astrophysical Journal. 921(1) |
| بيانات النشر: | United States: NASA Center for Aerospace Information (CASI), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Lunar And Planetary Science And Exploration |
| الوصف: | Much attention has been given to the climate dynamics and habitable boundaries of synchronously rotating planets around low mass stars. However, other rotational states are possible, including spin–orbit resonant configurations, particularly when higher eccentricity orbits can be maintained in a system. Additionally, the oscillating strain as a planet moves from periastron to apoastron results in friction and tidal heating, which can be an important energy source. Here, we simulate the climate of ocean-covered planets near the inner edge of the habitable zone around M to solar stars with the NASA GISS ROCKE-3D general circulation model, and leverage the planetary evolution software package, VPLanet, to calculate tidal heating rates for Earth-sized planets orbiting 2600 and 3000 K stars. This study is the first to use a 3D general circulation model that implements tidal heating to investigate habitability for multiple resonant states. We find that for reference experiments without tidal heating, the resonant state has little impact on the radial position of the inner edge because for a given stellar flux, higher-order states tend to be warmer than synchronous rotators, but for a given temperature, have drier upper atmospheres. However, when strong tidal heating is present, the rotational component implies a strong dependence of habitable conditions on the system evolution and rotational state. Since tidal and stellar heating both decrease rapidly with orbital distance, this results in a compact orbital width separating temperate and uninhabitable climates. We summarize these results and also compare ROCKE-3D to previously published simulations of the inner edge. |
| نوع الوثيقة: | Report |
| اللغة: | English |
| تدمد: | 1538-4357 0004-637X |
| DOI: | 10.3847/1538-4357/ac135c |
| URL الوصول: | https://ntrs.nasa.gov/citations/20205010875 |
| ملاحظات: | NN17HP03C 811073.02.10.03.17 811073.02.36.01.56 811073.02.52.01.08.35 80NSSC20K0230 80NSSC18K0829 |
| رقم الأكسشن: | edsnas.20205010875 |
| قاعدة البيانات: | NASA Technical Reports |
| تدمد: | 15384357 0004637X |
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| DOI: | 10.3847/1538-4357/ac135c |