论文标题

62个南对的措施

Measures of 62 Southern Pairs

论文作者

James, Matthew, Letchford, Rod, White, Graeme L, Emery, Meg, Bosi, Stephen

论文摘要

我们报告了从WD中的中南部下降的62对的幸运成像观察结果,其分离大于4弧秒,小于10的分离。该措施包括分离和对Alpha Centauri AB和漂移扫描的校准,并以这两种校准的加权方式表示,并具有正式的内部不正确方法,并带有正式的内部不确定性的方法。我们还将我们的措施与1)推断的历史措施,2)GAIA DR2数据和3)根据河马和Gaia观察确定的措施。我们对这3个数据库的偏见的最佳估计是ρ\ pm 30 mas,pa \ of 0.04 \ pm 0.08(deg)。这些形式的不确定性与Δρ= 80 mas的内部不确定性和ΔPA= 0.056(deg)一致。我们还报告了61对的直线元件,5级轨道元素的5对元素,并将5对作为光学双打(其中4对是新的)。

We report lucky imaging observations of 62 pairs at mid-southern declinations sourced from the WDS with separations larger than 4 arc seconds and magnitude less than 10. The measures comprise separations and PA calibrated against Alpha Centauri AB and drift scans, presented as weighted means of these two calibration methods, with formal internal uncertainties δρ= 80 mas and δPA = 0.056(deg). We also compare our measures against 1) extrapolated historic measures, 2) GAIA DR2 data and 3) measures determined from HIPPARCOS and GAIA observations. Our best estimate of our bias against these 3 databases are ρ\approx 10 \pm 30 mas and PA \approx 0.04 \pm 0.08(deg). These formal uncertainties are consistent with the internal uncertainties of δρ= 80 mas and δPA = 0.056(deg). We also report Rectilinear Elements for 61 pairs, Grade 5 Orbital Elements for 5 pairs and suggest 5 pairs as optical doubles (4 of which are new).

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