用差分散斑巡天仪观测双星。VII。2010年9月至2012年2月在WIYN望远镜上进行的测量
Observations of Binary Stars with the Differential Speckle Survey Instrument. VII. Measures from 2010 September to 2012 February at the WIYN Telescope
摘要：
我们报告了2010年9月至2012年2月期间在WIYN望远镜进行的双星散斑观测，提供了883个物体的2521次观测的相对天体测量，其中856个是双星，其中27个是三星。测量的间隔跨度范围为0.01至1.75弧秒。使用562 nm、692 nm和880 nm的波长，并且在大多数情况下呈现这些波长中的一个或多个的差示光度法。66个组件首次得到解决。我们还估计在0.2和1.0弧秒的高质量的观察，在没有同伴的情况下，共176个额外的对象的检测极限。探测极限根据观测条件和信噪比而变化，但平均在0.2弧秒时约为4个量级，在1.0弧秒时约为6个量级。分析数据集的测量精度，我们发现，获得的个人分离具有约2个质量的线性测量不确定度，和光度学是不确定的约0.1个数量级一般。这项工作提供了基本的，良好的校准数据为未来的轨道和质量的测定，我们提出了三个第一轨道和总质量估计附近的K-矮星系统作为这种潜力的例子。
英文摘要：
We report on speckle observations of binary stars carried out at the WIYN Telescope over the period from September 2010 through February 2012, providing relative astrometry for 2521 observations of 883 objects, 856 of which are double stars and 27 of which are triples. The separations measured span a range of 0.01 to 1.75 arc seconds. Wavelengths of 562 nm, 692 nm, and 880 nm were used, and differential photometry at one or more of these wavelengths is presented in most cases. Sixty-six components were resolved for the first time. We also estimate detection limits at 0.2 and 1.0 arc seconds for high-quality observations in cases where no companion was seen, a total of 176 additional objects. Detection limits vary based on observing conditions and signal-to-noise ratio, but are approximately 4 magnitudes at 0.2 arc seconds and 6 magnitudes at 1.0 arc seconds on average. Analyzing the measurement precision of the data set, we find that the individual separations obtained have linear measurement uncertainties of approximately 2 mas, and photometry is uncertain to approximately 0.1 magnitudes in general. This work provides fundamental, well-calibrated data for future orbit and mass determinations, and we present three first orbits and total mass estimates of nearby K-dwarf systems as examples of this potential.
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