标题： 加州理工学院暗弱星系红移巡天 X：哈勃深空北区的红移巡天 显示英文标题

标题： Caltech Faint Galaxy Redshift Survey X: A Redshift Survey in the Region of the Hubble Deep Field North

摘要： 在哈勃深场北区使用凯克天文台的低分辨率成像光谱仪进行了一项红移调查。所产生的红移目录包含671条记录，是我们自己的数据与已发表的LRIS/凯克数据的汇总。对于HDF本身中的天体，无论形态如何，其完成度超过92%，达到$R = 24$星等，以及在以HDF为中心、直径为8角分的侧翼区域中达到$R = 23$星等，这在使用大型望远镜进行的星等限制调查中是异常高的完成度。在$R \sim 23.8$处达到了中值红移$z = 1.0$。当一个星系群或松散星系团穿过被调查区域时，红移分布中会出现强烈的峰值，在该数据集中可以识别到$z \sim 1.2$。超过68%的星系是这些红移峰值的成员。在少数情况下，$z$中的紧密间隔峰值可以被分解为单独的星系群，这些星系群在速度和天空位置上都可以被区分。 这些峰值在铅笔束调查中的径向分离与我们采用的宇宙学中它们的特征长度尺度$\approx$70 Mpc 一致 ($h = 0.6, \Omega_M = 0.3$, $\Lambda = 0$)。 在回溯到$z \le 1.1$的所有时期，都明显存在强星系聚集。 （摘要缩略） 显示英文摘要

摘要： A redshift survey has been carried out in the region of the Hubble Deep Field North using the Low Resolution Imaging Spectrograph at the Keck Observatory. The resulting redshift catalog, which contains 671 entries, is a compendium of our own data together with published LRIS/Keck data. It is more than 92% complete for objects, irrespective of morphology, to $R = 24$ mag in the HDF itself and to $R = 23$ mag in the Flanking Fields within a diameter of 8 arcmin centered on the HDF, an unusually high completion for a magnitude limited survey performed with a large telescope. A median redshift $z = 1.0$ is reached at $R \sim 23.8$. Strong peaks in the redshift distribution, which arise when a group or poor cluster of galaxies intersect the area surveyed, can be identified to $z \sim 1.2$ in this dataset. More than 68% of the galaxies are members of these redshift peaks. In a few cases, closely spaced peaks in $z$ can be resolved into separate groups of galaxies that can be distinguished in both velocity and location on the sky. The radial separation of these peaks in the pencil-beam survey is consistent with a characteristic length scale for the their separation of $\approx$70 Mpc in our adopted cosmology ($h = 0.6, \Omega_M = 0.3$, $\Lambda = 0$). Strong galaxy clustering is in evidence at all epochs back to $z \le 1.1$. (abstract abridged)