Redshift Clustering in the Hubble Deep Field
Redshift Clustering in the Hubble Deep Field
复制标题
哈勃深场中的红移聚类
DOI：
10.1086/310330
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
P. Shopbell
中科院分区：
文献类型：
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作者：
J. Cohen;L. Cowie;D. Hogg;A. Songaila;R. Blandford;E. Hu;P. Shopbell
我们介绍了在哈勃深场用10米W. m .凯克望远镜上的低分辨率成像光谱仪进行的红移调查的初步结果。在这个样本中的140个河外天体的红移分布中，我们发现了6个速度色散为~400 km s-1的强峰。在一个特定的峰值内的物体面密度，虽然它可能是不均匀的，但并没有显示出强烈的中心集中的证据。这些峰的特征（速度色散、密度增强、间距和空间范围）与在不同的高银河系纬度场进行的类似红移调查中看到的相似（Cohen和同事），证实了这些结构是通用的。它们可能是当地观测到的巨大星系结构（“壁”）的高红移对应体。
We present initial results from a redshift survey carried out with the low-resolution imaging spectrograph on the 10 m W. M. Keck Telescope in the Hubble Deep Field. In the redshift distribution of the 140 extragalactic objects in this sample, we find six strong peaks with velocity dispersions of ~400 km s-1. The areal density of objects within a particular peak, while it may be nonuniform, does not show evidence for strong central concentration. These peaks have characteristics (velocity dispersions, density enhancements, spacing, and spatial extent) similar to those seen in a comparable redshift survey in a different high Galactic latitude field (Cohen and coworkers), confirming that the structures are generic. They are probably the high-redshift counterparts of huge galaxy structures (“walls”) observed locally.