在JWST存档数据中寻找TRAPPIST-1外行星的辐射
Looking for TRAPPIST-1 external planets' emission in JWST archival data
AI总结：
本研究利用JWST存档数据尝试检测TRAPPIST-1外行星的辐射，因精度不足未获结果，但提出在特定相位范围开展约60小时连续观测可达成目标。
AI中文摘要：
TRAPPIST-1系统已被JWST全面观测，但恒星污染问题严重限制了凌星观测的解读；对于辐射观测，仅通过5个专门的JWST项目观测了两颗最近的行星。我们收集了所有这些辐射观测数据，尝试在之前JWST对TRAPPIST-1的MIRI观测中检测外行星的组合辐射，本文介绍了我们的方法和结果。我们未能达到足够的精度以检测外行星的热辐射，也无法区分全裸岩石和全大气的情景。不过，我们表明在特定相位范围进行约60小时的连续观测，此时外行星的热通量梯度最大，可实现这一目标。
英文摘要：
The TRAPPIST-1 system has been thoroughly observed with JWST. Unfortunately, stellar contamination issues strongly limit the interpretation of transit observations. As for emission observations, only the two closest planets have been observed through five dedicated JWST programs. We gathered all these emission observations and tried to detect the combined emission of the external planets in previous JWST MIRI observations of TRAPPIST-1; this paper presents our approach and our results. We could not achieve sufficient precision to detect the thermal emission of the outer planets and to discriminate between an all-bare rocks and an all-atmospheres scenario. However, we show that a~60 hours continuous observations at a specific phase range, when the gradient of thermal flux from the outer planets is maximum, could allow us to achieve this goal.
