【摘要】 利用紫金山天文台青海观测站13 .7 m 射电望远镜,对5 个行星状星云给出了新的谱线观测结果.其中行星状星云M1 - 8 和M3 - 3 已探测到CO(2 - 1) 的发射,给出了它们的CO(1 - 0) 观测结果;对曾进行过CO 观测,但未探测到CO 发射的行星状星云M1 - 12 、M2 - 43 和NGC6537 ,第一次证认了它们的CO(1 - 0) 发射.更多还原

【Abstract】 The authors present 5 new observations of the CO(1-0) line emission in planetary nebulae with the 13.7 m radio telescope of Purple Mountain Observatory at Qinhai Station. They carried out the first CO(1-0) observations of M1-8 and M3-3, which have been observed in CO(2-1), and first confirmed the detection of CO in M1-12,M2-43 and NGC6537, which haven’t been detected in previous CO survey.更多还原