评估邻近双星系统中的行星稳定性与长期宜居性：70 Oph、36 Oph 与 γ Leo

本文通过数值模拟评估了邻近双星系统 36 Oph、70 Oph 和 γ Leo 维持宜居行星的可能性。研究发现，36 Oph 和 70 Oph 系统能够支持位于宜居带内的行星，而 γ Leo 系统中的红巨星因动力不稳定性导致宜居带消失。

arXiv:2608.13243v2 Announce Type: replace Abstract: 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 $\gamma$ 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 $\gamma$ 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