Abstract

Based on Gaia DR3 data, a new revision of the stellar content is performed within the \(20^{\prime}\)-radius field centered on the young open cluster vdB 130, which is a part of the Cyg OB1 stellar association. A total of 97 stars and 39 protostars of luminosity classes I/II/III are identified that have proper-motion based cluster membership probabilities \(P>0.98\). The total number of possible cluster members with membership probabilities \(P>0.50\) is equal to about 300, and the cluster age estimated by fitting theoretical isochrones does not exceed 10 Myr. The trigonometric-parallax based cluster distance is \(D\approx 1670\pm 60\) pc, and the cluster color excess, \(E(BP-RP)\approx 0\overset{\textrm{m}}{.}85\pm 0\overset{\textrm{m}}{.}02\) with evidence for strong differential extinction.

中文翻译：

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基于Gaia DR3数据对恒星协会Cyg OB1区域年轻疏散星团vdB 130恒星含量和物理性质的新修正

摘要

基于Gaia DR3数据，在以年轻疏散星团vdB 130为中心的\(20^{\prime}\)半径场内进行了恒星内容的新修订，该星团是Cyg OB1恒星协会的一部分。总共鉴定出 97 颗恒星和 39 颗光度等级为 I/II/III 的原恒星，它们具有基于自行运动的星团成员概率\(P>0.98\)。具有成员概率\(P>0.50\)的可能星团成员总数 约为300个，通过拟合理论等时线估计的星团年龄不超过10 Myr。基于三角视差的簇距离为\(D\approx 1670\pm 60\)  pc，并且簇颜色过剩，\(E(BP-RP)\approx 0\overset{\textrm{m}}{.}85\pm 0\overset{\textrm{m}}{.}02\) 有强烈差异灭绝的证据。