天体测量和径向速度系外行星观测的互补性--用天体测量快照确定系外行星质量
The complementarity of astrometric and radial velocity exoplanet observations - Determining exoplanet mass with astrometric snapshots
摘要：
我们通过结合径向速度和天体测量的贝叶斯推断的手段，获得完整的信息的轨道参数。我们采样的轨道模型参数的参数概率密度与马尔可夫链蒙特卡罗（McMC）方法在模拟的观测方案，以测试的可探测性的行星的轨道周期长于观测时间表。我们表明，当拟合模型参数同时从两个来源的测量，它是可能的，从测量中提取更多的信息比单独使用任何一个来源。我们通过研究最近发现的太阳系外行星HD 154345 b的轨道来证明这一点。
英文摘要：
We obtain full information on the orbital parameters by combining radial velocity and astrometric measurements by means of Bayesian inference. We sample the parameter probability densities of orbital model parameters with a Markov chain Monte Carlo (McMC) method in simulated observational scenarios to test the detectability of planets with orbital periods longer than the observational timelines. We show that, when fitting model parameters simultaneously to measurements from both sources, it is possible to extract much more information from the measurements than when using either source alone. We demonstrate this by studying the orbit of recently found extra-solar planet HD 154345 b.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
