| 新发现的4个X选类星体和个赛弗特星系 |
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| 引用本文： | 赵永恒,施建荣,赵刚.新发现的4个X选类星体和个赛弗特星系[J].中国天文和天体物理学报,2000,20(1). |
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| 作者姓名： | 赵永恒 施建荣 赵刚 |
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| 作者单位： | 中国科学院北京天文台!北京，100012，中国科学院国家天文观测中心!北京，100012 |
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| 摘 要： | 1997－1998年期间，使用2．16m望远镜对ROSATX射线源进行光学证认，证认出4个ROSATX射线源是新发现的类星体，2个ROSATX射线源是新发现的赛弗特星系．
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| 关 键 词： | ROSATX射线源 类星体 赛弗特星系 |
Discovery of Four New X-ray Selected Quasars and Two New SeyfertGalaxies from ROSAT Sources |
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| ZHAO Yong-heng,SHI Jian-rong,ZHAO Gang.Discovery of Four New X-ray Selected Quasars and Two New SeyfertGalaxies from ROSAT Sources[J].Chinese Journal of Astronomy and Astrophysics,2000,20(1). |
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| Authors: | ZHAO Yong-heng SHI Jian-rong ZHAO Gang |
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| Abstract: | We present optical identifications of six previously unknown X-ray sources that are present in the source catalog of ROSAT PSPC and RASS observations. The optical spectroscopy was carried out with the 2.16 m telescope at the Xinglong Station of Beijing Astro-nomical Observatory in 1997-1998. And we have identified four active galactic nuclei and two Seyfert galaxies. |
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| Keywords: | quasar Seyfert galaxy X-ray sources |
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