AI 中文总结
本研究通过数值模拟评估36 Oph、70 Oph、γ Leo的行星宜居性，发现前两者宜居带行星稳定性好，后者因动力学不稳定无宜居行星，其方法可用于完善宜居行星搜寻目标列表。
AI 中文摘要
双星系统十分常见，且有潜力拥有宜居行星，这类行星可能位于比单星系统中行星更复杂的宜居带内。本研究采用数值模拟方法，评估明亮的近距多星系统36 Oph、70 Oph和γ Leo拥有宜居行星的可能性。研究发现，对于36 Oph A/B系统和70 Oph A/B系统，恒星可支持行星位于永久宜居带内，且行星的抛射率低、偏心率振荡幅度适中；而γ Leo系统中红巨星周围的宜居带因双星偏心率较高表现出严重的动力学不稳定性，导致两颗恒星周围的宜居带均被排除。在上述两个系统中，与双星轨道共面的宜居带行星因与双星相互作用而变得不宜居的概率仅为1.5%-1.8%；而轨道与双星平面错位45度的行星，其轨道偏心率会出现更大幅度的振荡，因此变得不宜居的概率为4.8%-5.4%。研究结果表明，36 Oph和70 Oph是未来任务（如宜居世界天文台Habitable Worlds Observatory和SHERA）的有前景目标，而γ Leo中的恒星不太可能拥有任何宜居行星；本研究的方法可更广泛应用于其他双星系统，以完善即将开展的宜居行星搜寻的目标列表。
英文摘要
Binary stars are common and have the potential to host habitable planets, which may reside in more complex habitable zones as compared to planets orbiting single stars. In this work, we use numerical simulations to assess the possibility that bright, nearby stellar multiples 36 Oph, 70 Oph, and $γ$ Leo could host habitable planets. We find that for the 36 Oph A/B system and for the 70 Oph A/B system, the stars can support planets residing in permanently habitable zones with low ejection rates and moderate eccentricity oscillations. The habitable zones around the red giants in the $γ$ Leo system exhibit severe dynamical instability due to the high binary eccentricity, eliminating the habitable zones around both stars. In these two systems, we find that planets in the habitable zone with orbits coplanar to that of the binary become uninhabitable due to interactions with the binary only 1.5% - 1.8% of the time, while planets with orbits 45 degrees misaligned to the plane of the binary experience larger oscillations in orbital eccentricity and as a result become uninhabitable 4.8% - 5.4% of the time. Our results identify 36 Oph and 70 Oph as promising targets for future missions such as the Habitable Worlds Observatory and SHERA, while suggesting that the stars in $γ$ Leo are unlikely to host any habitable planets. Our methods can be applied more generally to other binary stellar systems to refine target lists for upcoming habitable planet searches.
