Near-IR astrometry of Southern ICRF quasars

We present high quality astrometry, along with J, H, and Ks photometry, for 30 southern International Celestial Reference Frame (ICRF) quasars observed with the ESO NTT/SOFI at...本研究给出了30颗南天国际天球参考架（ICRF）类星体的高精度天体测量数据，以及J、H、Ks波段的测光数据，相关观测由欧洲南方天文台（ESO）新技术望远镜（NTT）搭载的SOFI设备于……完成。