Observations of quasars with the International Ultraviolet Explorer satellite.

Observations of quasars with the International Ultraviolet Explorer satellite.
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使用国际紫外线探测器卫星观测类星体。

DOI：
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发表时间：
1980
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影响因子：
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通讯作者：
H. Wahlquist
H. Wahlquist
中科院分区：
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文献类型：
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作者：
R. Green;J. Pier;M. Schmidt;F. Estabrook;A. Lane;H. Wahlquist

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本文讨论了用安装在IUE卫星上的45厘米望远镜获得的红移范围从0.23到2.04的六个类星体的光谱。L-α到H β的平均发射线强度比和两个物体中高阶莱曼发射线的检测被发现与一个简单的光学厚复合模型不一致。莱曼和巴尔末线速度分布是相同的。3C 351的发射谱线可分解为尖谱线和宽谱线，尖谱线符合复合模型。
The paper deals with the spectra of six quasars, ranging in redshift from 0.23 to 2.04, obtained with the 45-cm telescope mounted on the IUE satellite. The average emission-line intensity ratio for L-alpha to H beta and the detection of higher-order Lyman emission lines in two objects are found to be inconsistent with a simple optically thick recombination model. The Lyman and Balmer line velocity profiles are identical. The emission lines in 3C 351 can be decomposed into sharp and broad components, with the sharp lines consistent with the recombination model.