论文标题
人口II巨头HD中的太阳状振荡122563
Sun-like Oscillations in the Population II giant HD 122563
论文作者
论文摘要
自2016年以来，我们一直使用Tenerife上的歌曲望远镜来监视自2016年以来的径向速度变化，以监视金属贫困人口II巨头HD 122563。我们已经检测到全局地震数量Numax，该数量提供了与恒星参数相关的信息。通过将这些数据与互补数据相结合，我们得出了一个新的精确表面重力，半径和距离恒星的距离。通过使用Gaia DR2的视差，我们的结果得到了证实。我们提出了这些结果及其含义。
We have been monitoring the metal-poor Population II giant, HD 122563, for radial velocity variations since 2016 using the SONG telescope on Tenerife. We have detected the global seismic quantity, numax, which provides information related to the stellar parameters. By combining these data with complementary data, we derive a new precise surface gravity, radius and distance to the star. Our results are corroborated by using the parallax from Gaia DR2. We present these results and some of their implications.
