麦哲伦行星搜索计划中南方恒星的色球活动
Chromospheric activity of Southern Stars from the Magellan Planet Search Program
摘要：
我目前的色球活动测量的~ 670 F，G，K和M主序星在南半球，从~8000档案高分辨率阶梯光谱在Las Campanas天文台自2004年以来。这些恒星是旧麦哲伦行星搜索的目标，现在是新麦哲伦行星搜索的潜在目标，将寻找岩石和可居住的行星。活动指数（S值）来自Ca II H & K线岩心，然后转换为Mt。威尔逊系统从这些测量，色球（logrhk）指数的推导，然后被用来作为指标的水平径向速度抖动，年龄和旋转周期，这些恒星目前。
英文摘要：
I present chromospheric activity measurements of ~ 670 F, G, K and M main sequence stars in the Southern Hemisphere, from ~8000 archival high-resolution echelle spectra taken at Las Campanas Observatory since 2004. These stars were targets from the Old Magellan Planet Search, and are now potential targets for the New Magellan Planet Search that will look for rocky and habitable planets. Activity indexes (S-values) are derived from Ca II H & K line cores and then converted to the Mt. Wilson system. From these measurements, chromospheric (logrhk) indexes are derived, which are then used as indicators of the level of radial-velocity jitter, age and rotation periods these stars present.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
