CAJ | 학술논문

使用紫金山天文台13.7 m望远镜上新安装的SIS系统，对64个高色指数IRAS源和水脉泽源进行了CO同位素13CO和C18O J=1-0的搜寻，并对部分源作了成图观测. 结果在64个源中全部测到了这一谱线对，而13CO的辐射一般较强，说明与稠密分子区成协,其中约60个源为首次作CO同位素谱线对巡测. 用高斯拟合导出了天线温度、线心速度和谱线全半宽.对辐射强度、谱线特征进行了初步分析.
사용자금산천문태13.7 m망원경상신안장적SIS계통，대64개고색지수IRAS원화수맥택원진행료CO동위소13CO화C18O J=1-0적수심，병대부분원작료성도관측. 결과재64개원중전부측도료저일보선대，이13CO적복사일반교강，설명여주밀분자구성협,기중약60개원위수차작CO동위소보선대순측. 용고사의합도출료천선온도、선심속도화보선전반관.대복사강도、보선특정진행료초보분석.
Using the newly installed SIS receiving system of the 13.7 mtelescope of PMO, CO isotopes 13CO J=1-0 were observed in a search for dense cores in 64 IRAS sources with high color indices orH2O masers. Maps were obtained for some of the sources. Theline pair was detected in all the target sources. The emission of 13CO J=1-0 is strong showing that the emission regions aredense. The pair lines of the CO isotopes were measured for the first time inat least 60 sources. Antenna temperatures, center velocities and linewidths are obtained with Gaussian fitting. Preliminary analyses were madefor the emission intensities and line profiles.