Young nearby runaway stars are suitable to search for their place of origin and possibly associated objects, for example neutron stars. Tetzlaff, Neuhauser & Hohle (2011) selected young ($\le 50$ Myr) runaway star candidates from Hipparcos, for which they had estimated the ages from the location in the Hertzsprung-Russell diagram and evolutionary models. Here, we redetermine or constrain their young ages more precisely not only by using the new Gaia DR2 data, but also by measuring lithium, which is a youth indicator. For 308 stars, we took spectra to search for the strong resonance doublet of the lithium-7 isotope at 6708 $\unicode{xC5}$. The spectra were taken with the Echelle spectrograph FLECHAS at the University Observatory Jena between February 2015 and June 2018 and with TRES between April 2011 and June 2017 at the Fred L. Whipple Observatory. We found 208 stars with significant occurrence of lithium in their spectra, and five possess a possible age younger or about 50 Myr. Three of these targets are even closer than GJ 182, the nearest known runaway star at about 24 pc. Theses stars are young runaway stars suitable for further investigation of their origin from either a dynamical or supernova ejection.

中文翻译：

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根据盖亚数据和锂测试确定附近的年轻失控恒星†

附近的年轻失控恒星适合寻找它们的起源地和可能相关的物体，例如中子星。Tetzlaff、Neuhauser 和 Hohle（2011 年）从 Hipparcos 中选出了年轻（$\le 50$ Myr）失控的候选恒星，他们根据 Hertzsprung-Russell 图和进化模型中的位置估计了年龄。在这里，我们不仅通过使用新的 Gaia DR2 数据，而且通过测量作为青年指标的锂来更精确地重新确定或限制他们的年轻年龄。对于 308 颗恒星，我们用光谱寻找锂 7 同位素在 6708 $\unicode{xC5}$ 处的强共振双峰。这些光谱是在 2015 年 2 月至 2018 年 6 月期间在耶拿大学天文台的阶梯光谱仪 FLECHAS 以及 2011 年 4 月至 2017 年 6 月期间在 Fred L. 惠普尔天文台。我们在光谱中发现了 208 颗明显存在锂的恒星，其中 5 颗的年龄可能更小或大约 50 Myr。其中三个目标甚至比 GJ 182 更近，GJ 182 是最近的已知失控恒星，大约有 24 pc。这些恒星是年轻的失控恒星，适合进一步研究它们来自动力或超新星抛射的起源。