12CO/13CO ratio in 126 nearby galaxy centers

We present ground-based measurements of 126 nearby galaxy centers in ^12^CO and 92 in ^13^CO in various low-J transitions. More than 60 galaxies were measured in at least four...本研究给出了126个邻近星系核区在多种低转动跃迁（low-J transitions）下的碳-12一氧化碳（12CO）地基实测数据，以及92个邻近星系核区的碳-13一氧化碳（13CO）对应实测数据。其中超过60个星系至少完成了四种及以上的相关测量。