大质量恒星的高角分辨率多重数
The High Angular Resolution Multiplicity of Massive Stars
摘要：
我们提出的银河系大质量恒星的斑点干涉测量的结果，补充和扩展了类似的调查十多年前。用KPNO和CTIO 4 m望远镜和USNO散斑照相机进行了散斑观测，它们对角距在0.03”和5”之间的双星和相对明亮的伴星（Δ V < 3）的探测很敏感。我们报告的发现同伴14 OB星。我们总共分辨了385颗O星中的41颗（11%）、37颗沃尔夫-拉叶星中的4颗（11%）和139颗B星中的89颗（64%;我们选择了一个丰富的可见双星样本用于未来的轨道测定）。我们对银河系O星表中列出的子样本中的双星频率进行了统计分析，通过汇编通过自适应光学研究和/或在华盛顿双星表中发现的其他视觉伴星的已发表数据，并收集已发表的径向速度和光谱双星的信息。我们发现，二进制的频率是高得多的O-星之间的集群和协会相比，现场和失控的O-星的数量，与预测的喷射过程中失控的恒星。我们提出了第一个轨道的O型星三角洲Orionis，一个线性的解决方案，密切的，显然是光学，同伴的O型星猎户座Iota，和改进的轨道的Be星天蝎座Delta。最后，我们列出了另外249个已解决和221个未解决的目标的天体测量数据，这些目标是我们为其他各种科学计划观察到的低质量恒星。
英文摘要：
We present the results of a speckle interferometric survey of Galactic massive stars that complements and expands upon a similar survey made over a decade ago. The speckle observations were made with the KPNO and CTIO 4 m telescopes and USNO speckle camera, and they are sensitive to the detection of binaries in the angular separation regime between 0.03" and 5" with relatively bright companions (Delta V < 3). We report on the discovery of companions to 14 OB stars. In total we resolved companions of 41 of 385 O-stars (11%), 4 of 37 Wolf-Rayet stars (11%), and 89 of 139 B-stars (64%; an enriched visual binary sample that we selected for future orbital determinations). We made a statistical analysis of the binary frequency among the subsample that are listed in the Galactic O Star Catalog by compiling published data on other visual companions detected through adaptive optics studies and/or noted in the Washington Double Star Catalog and by collecting published information on radial velocities and spectroscopic binaries. We find that the binary frequency is much higher among O-stars in clusters and associations compared to the numbers for field and runaway O-stars, consistent with predictions for the ejection processes for runaway stars. We present a first orbit for the O-star Delta Orionis, a linear solution of the close, apparently optical, companion of the O-star Iota Orionis, and an improved orbit of the Be star Delta Scorpii. Finally, we list astrometric data for another 249 resolved and 221 unresolved targets that are lower mass stars that we observed for various other science programs.
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。
