本文探讨了系外类地行星在短周期或偏心轨道下,因潮汐加热与恒星辐射共同作用而引发类似金星的失控温室效应。研究通过对143颗系外行星的潮汐加热速率进行计算,建立了一套潮汐气候影响分类体系,并结合五个案例分析了其大气演化潜力。
arXiv:2608.18290v2 Announce Type: replace Abstract: The demographics of terrestrial planets and their orbits reveal a vast diversity in overall planetary energy budgets. Terrestrial exoplanets in short-period or eccentric orbits can experience intense tidal heating that, combined with stellar irradiation, may trigger runaway greenhouse conditions analogous to Venus. We calculate tidal heating rates for 143 terrestrial-sized exoplanets with measured eccentricities and find that, under adopted archive default eccentricities and constant-$Q$ assumptions, 70% exceed the extreme volcanism threshold in tidal flux and 96% exceed the runaway greenhouse limit in total zero-albedo flux. We develop a three-category taxonomy of tidal influence on climate: flux-driven Venus analogs, tidally dominated planets, and historically compromised Habitable Zone (HZ) worlds, and apply this framework to five case studies. TOI-6716 b and TOI-912 b may have exceptionally high tidal fluxes, potentially serving as examples where tidal dissipation alone causes them to exceed the runaway greenhouse threshold. TOI-700 d and LHS 1140 b, though currently below the threshold, were exposed to above-threshold stellar irradiation during their host stars' $\sim$0.5--3~Gyr pre-main-sequence phases; whether their atmospheres survived is testable with JWST. GJ 12 b, already above the threshold from stellar flux alone, experiences a tidal heat flux of $\sim$5~W/m$^2$ (comparable to
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