西藏羊八井CCOSMA亚毫米波望远镜及其科学目标  

Introduction to the CCOSMA submillimeter telescope established at Yangbajing in Tibet and its scientific objectives

作　　者：徐金龙[1,2] 关欣 李建斌 王俊杰[1,2] 宁长春 徐刚[1,2] 吴琪[3,2] 喻耐平[1,2] 刘晓兰[1,2] 李楠 吕金泉 

机构地区：[1]中国科学院国家天文台,北京100012 [2]国家天文台/西藏大学联合天体物理中心,西藏拉萨850000 [3]西藏大学理学院,西藏拉萨850000

出　　处：《高原科学研究》2017年第1期51-56,共6页Plateau Science Research

基　　金：国家自然科学基金项目(11363004);西藏大学珠峰学者人才发展支持计划(藏大字[2015]96号)

摘　　要：西藏羊八井3米CCOSMA射电望远镜是目前北半球海拔最高的亚毫米波望远镜。CCOSMA配备了230GHz和345GHz双通道接收机,可以成功观测230GHz和345GHz两个频段的信号。CCOSMA的主要优势是可以同时观测两条不同频段的分子谱线,其科学目标是高价CO的银道面巡天,以及一些大尺度多样本的分子天体观测。目前,该望远镜的安装调试工作正在有序进行,预计2017年年底正式进行观测。The 3-meter CCOSMA radio telescope established at Yangbajing station in Tibet Autonomous Region is the highest located submillimeter-wave telescope in the northern hemisphere at present. The CCOSMA is equipped with 230GHz and 345GHz dual-channel receivers to successfully observe signals within the bands of 230GHz and 345GHz. The main advantage of CCOSMA is that it can simultaneously observe molecular spectrum spanned in this two different bands. Our main scientific objective is to observe high order CO Galaxy plane, and some large-scale and multiple-sample molecular object. So far, installation and commissioning of the telescope has been carried out as the schedule, and formal observation using this telescope is expected by the end of 2017.

关 键 词：西藏羊八井 CCOSMA 亚毫米波 望远镜 

分 类 号：TH743[机械工程—光学工程]