论文标题
通过1 - 7年来预测TESS Prime的系外行星产量和扩展任务
Predicting the Exoplanet Yield of the TESS Prime and Extended Missions Through Years 1-7
论文作者
论文摘要
经过三年半的观察后，过境系外行星调查卫星（TESS）发现了$ \ sim $ 5000行星和行星候选人。随着计划的第二次延长任务，跨越了5-7年，现在是时候修改苔丝系外行星产量的预测了。我们介绍了苔丝输入目录候选目标列表v8.01至七年的苔丝任务中的苔丝输入目录候选目标列表v8.01 v8.01的可检测行星数量的模拟。我们的模拟利用了改进的光度性能和时间窗口功能的模型。开普勒团队还依靠注射和恢复测试的结果来改善检测模型。我们估计4719 $ \ pm $ 334周围的行星应仅通过主要任务中的数据（1-2年）来检测到，而另外3707 $ \ pm 209 $ 209行星应在当前的扩展任务结束之前（3-4年）。基于提议的第二次扩展任务的指向方案（5-7年），我们预计Tess应该再找到4093 $ \ pm $ 180的行星，将苔丝总收益率提高到12519 $ \ pm $ \ pm 678 $ 678。我们将预测的收率作为宿主星光谱类型，行星半径，轨道周期，随访可行性以及相对于可居住区的位置的功能。我们还将我们的预测与实际的主要任务收益率进行了比较，找到了良好的同意
The Transiting Exoplanet Survey Satellite (TESS) has discovered $\sim$5000 planets and planet candidates after three and a half years of observations. With a planned second Extended Mission spanning Years 5 - 7 on the horizon, now is the time to revise predictions of the TESS exoplanet yield. We present simulations of the number of detectable planets around 9.4 million AFGKM stars in the TESS Input Catalog Candidate Target List v8.01 through seven years of the TESS mission. Our simulations take advantage of improved models for the photometric performance and temporal window functions. The detection model was also improved by relying on the results of inject-and-recovery testing by the Kepler team. We estimate 4719$\pm$334 planets around these stars should be detectable with data from the Prime Mission alone (Years 1 - 2), and another 3707$\pm$209 planets should be detectable by the end of the current Extended Mission (Years 3 - 4). Based on a proposed pointing scenario for a second Extended Mission (Years 5 - 7), we predict TESS should find a further 4093$\pm$180 planets, bringing the total TESS yield to 12519$\pm$678 planets. We provide our predicted yields as functions of host star spectral type, planet radius, orbital period, follow-up feasibility, and location relative to the habitable zone. We also compare our predictions to the actual Prime Mission yield, finding good agreement
