Alignment of radio and optical orientations in high-redshift radio galaxies
Alignment of radio and optical orientations in high-redshift radio galaxies
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DOI：
10.1038/329604a0
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发表时间：
1987-10
期刊：
影响因子：
64.8
通讯作者：
K. Chambers;G. Miley;W. Breugel
中科院分区：
文献类型：
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作者：
K. Chambers;G. Miley;W. Breugel
对超高光谱射电源进行的VLA(甚大阵列)无线电和CCD(电荷耦合装置)光学成像测量的结果证实了它们与微弱的和可能遥远的星系的联系。这些星系在光学发射的长轴和射电轴之间几乎是通用的。这种排列比已知的光学明亮射电源与巨型椭圆星系1-3的短轴对准的相反趋势重要得多。射电发射与星系的大尺度光学性质之间的强烈关系表明，高红移射电星系与低红移射电星系有着根本的不同。这对目前关于高红移射电星系的性质和基于它们的宇宙学工作有着重要的影响。
The results of a VLA (Very Large Array) radio and CCD (charge-coupled device) optical imaging survey of ultra-steep spectrum radio sources confirm their association with faint and presumably distant galaxies. These galaxies have an almost universal alignment between the major axis of the optical emission and the radio axis. The alignment is far more significant than the known opposite tendency for optically bright radio sources to be aligned with the minor axis of giant elliptical galaxies1–3. Such a strong relationship between the radio emission and the large-scale optical properties of the galaxies suggests that high-redshift radio galaxies are fundamentally different from their low-redshift counterparts. This has important consequences for current ideas on the nature of high-redshift radio galaxies and the cosmological work based upon them.