GECKO follow-up obs. of 3 binary BH GW events

We present optical follow-up observation results of three binary black hole merger (BBH) events, GW190408_181802, GW190412, and GW190503_185404, which were detected by the...本研究报道了由[原文未完整给出的探测主体]探测到的三例双黑洞并合（binary black hole merger, BBH）事件——GW190408_181802、GW190412及GW190503_185404的光学后续观测结果。