【摘要】 使用4米毫米波望远镜和中澳合作研制的高分辨率声光频谱仪完成了暗星云DC337.7—4.0的CO分子J=1-0谱线的成图观测。数据处理包含有消干扰步骤。获得云的平均辐射温度为7.3K,平均视向速度3.7km/s,平均谱线半宽1.1km/s。观测结果没显示出云中有恒星形成活动的迹象。更多还原

【Abstract】 Using the 4 m mm telescope with a high resolution acoustooptical spectrograph developed by Chinese-Australian collaboration, we have made the CO J = l - 0 molecular line map of dark cloud DC 337.7-4.0. The data processing includes an interference-fixing program. The average radiation temperature radial velocity and the line half-width of the cloud are 7.3 K, 3.7 km/s, and 1.1 km/s respectively. The current observational results do not show any evidence of star forming activity in this dark cloud.更多还原