Tidal Decay and circularization of the orbits of Short-Period planets
Tidal Decay and circularization of the orbits of Short-Period planets
复制标题
潮汐衰变和短周期行星轨道的圆化
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
S. Ferraz
中科院分区：
文献类型：
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作者：
Adrián Rodríguez;S. Ferraz
通过数值模拟和给出相对轨道半长轴和偏心率变化的平均方程，分析了单行星系统的长期潮汐演化。对于不同类型的行星，我们计算由于行星和恒星潮汐的变化。然后，我们计算的离心率的临界值，恒星潮汐成为主导的行星潮汐。轨道衰变和环化的时间尺度也进行了讨论和比较。
We analyze the long-term tidal evolution of a single-planet system through the use of numerical simulations and averaged equations giving the variations of semi-major axis and eccentricity of the relative orbit. For different types of planets, we compute the variations due to the planetary and stellar tides. Then, we calculate the critical value of the eccentricity for which the stellar tide becomes dominant over the planetary tide. The timescales for orbital decay and circularization are also discussed and compared.