PHASES差分天体测量数据档案。III。对第三类同伴的限制
The PHASES Differential Astrometry Data Archive. III. Limits to Tertiary Companions
摘要：
帕洛玛高精度天文测量搜索系外行星系统（PHASES）监测了51个亚角秒双星系统，以评估像类木行星这样小的第三类伴星是否围绕主星或副星运行，扰乱了它们原本平稳的开普勒运动。其中21个系统被观察了10次或更多次，没有显示出其他同伴的证据。本文提出了一种新的算法，用以根据PHASES双星的观测数据，识别出可高置信度排除的伴星，并给出了21个PHASES双星的质量-周期相空间排除区域。
英文摘要：
The Palomar High-precision Astrometric Search for Exoplanet Systems (PHASES) monitored 51 subarcsecond binary systems to evaluate whether tertiary companions as small as Jovian planets orbited either the primary or secondary stars, perturbing their otherwise smooth Keplerian motions. Twenty-one of those systems were observed 10 or more times and show no evidence of additional companions. A new algorithm is presented for identifying astrometric companions and establishing the (companion mass)-(orbital period) combinations that can be excluded from existence with high confidence based on the PHASES observations, and the regions of mass-period phase space being excluded are presented for 21 PHASES binaries.
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