新的H_2O脉泽源的发现与证认  

DISCOVERY AND IDENTIFICATION OF NEW H_2O MASER SOURCES

作　　者：孙锦[1] 唐歌实[1] 范英[1] 吕静 雷成明 韩付 

机构地区：[1]北京师范大学天文学系,中国科学院紫金山天文台

出　　处：《北京师范大学学报（自然科学版）》1994年第3期373-376,共4页Journal of Beijing Normal University(Natural Science)

基　　金：国家自然科学基金

摘　　要：用紫金山天文台青海站的１３．７ｍ射电望远镜对一批强ＩＲＡＳ远红外源（流量Ｆ１００μｍ＞５００Ｊｙ）进行了Ｈ２Ｏ脉泽谱线的搜寻，发现了１０个新的Ｈ２Ｏ脉泽源。其中９个源均与恒星形成区成协，它们是正在形成中的大质量星的标志，另一个则是著名的富碳星ＩＲＣ１０２１６，在富碳星包层中Ｈ２Ｏ脉泽活动的出现是罕见的。还讨论了这些新发现源的演化特性和时变特性。A search for H2O maser emission towards bright far-infrared IRAS sources has been made with the 13.7 m telescope of Purple Mountain Observatory at Qinhai station. The infrared fluxes at 100μm for all observed sources are larger than 500Jy. 10 new H2O maser sources were discovered. 9 new sources are associated with star formation regions and one is the famous rich carbon star-IRC10216. The discovery of H2O maser in the envelope of rich-C star is very seldom.The evolution and time-variation nature were also discussed.

关 键 词：恒星 H2O脉泽 远红外源 

分 类 号：P155.22[天文地球—天文学]