标题： 加利福尼亚理工学院暗弱星系红移巡天 X：哈勃深场北区域的红移巡天 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： 在北半球哈勃深场（HDF North）区域，使用凯克天文台的低分辨率成像光谱仪进行了红移巡天。由此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/Keck 数据的汇编。对于 HDF 本身至$R = 24$星等以及以 HDF 中心为中心直径 8 弧分内的邻近区域至$R = 23$星等的天体，该目录对形态学无关的天体的完成率超过 92%，这对于使用大望远镜进行的星等受限巡天来说是非常高的完成率。 中值红移$z = 1.0$在$R \sim 23.8$处达到。 当一个星系团或贫星系群穿过所调查的区域时，红移分布中的强峰值可以在该数据集中被识别至$z \sim 1.2$。 超过 68% 的星系属于这些红移峰值。 在少数情况下，$z$中紧密相邻的峰值可以解析为单独的星系群，这些星系群在速度和天空位置上都可以区分。 这些峰值在细笔状光束巡天中的径向分离与它们分离的特征尺度一致，其尺度为我们在所采用宇宙学中的 $\approx$70 Mpc（$h = 0.6, \Omega_M = 0.3$, $\Lambda = 0$）。 强星系聚类现象在所有时期均存在，直至 $z \le 1.1$。 （摘录简化版） 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)