首批证认8个密云射电源为BLLac天体和类星体  

Eight Miyun Radio Sources Identified as BL Lac Objects and Quasars

作　　者：张喜镇[1] 朱文白[1] 魏建彦[1] 胡景耀[1] 马振国[1] 

机构地区：[1]中国科学院北京天文台

出　　处：《天体物理学报》1998年第4期453-456,共4页

基　　金：国家自然科学基金;中国科学院光学联合开放实验室和射电联合开放实验室资助

摘　　要：为了深入研究密云射电源表分类样本的性质，作为系列工作的第一部分，选出了一个２３２～４８５０ＭＨｚ平谱源样本．１９９８年５月２９至３１日，利用北京天文台２．１６米望远镜和ＯＭＲ摄谱仪，对其中１８个目标进行了观测及光谱认证．结果共证认出１５个ＡＧＮ，其中３个信噪比不小于８的ＢＬＬａｃ天体和５个类星体（最大红移为２．５１９±０．００３）是新发现的．To study special radio sources of the Miyun Survey, 18 flat spectrum sources selected from 232 4850 MHz catalogs were followed up by optical identification as the first part of a series of research programs. Having been identification with the 2.16 m telescope at Beijing Astronomical Observatory in May, 1998, 15 AGNs were found in which three BL Lac objects with no less than 8 of signal to noise ratios, MYC1557 + 566, MYC1615 + 412, MYC1902 + 556, and five Quasars, MYC1415 + 385, MYC1615 + 365, MYC1722 + 527, MYC1825 + 345, MYC2207 + 357 are newly discovered.

关 键 词：射电源 BLLAC天体 类星体 

分 类 号：P157.7[天文地球—天文学] P158