A New Galaxy Redshift Survey at the Las Campanas Observatory

星系的红移测量将使天文学家能够推断出 我们宇宙的物理结构 来自星系的光的红移取决于距离 银河系。 一项新的星系红移调查， 规模将进行。 星系样本将被选中 使用扫描电荷耦合器件（CCD）的光电 智利的Las Campanas 1米望远镜。 红移 20,000个星系的数据将通过多目标 在宽场卡塞格林焦点的光谱学 坎帕纳斯2.5米望远镜 星系的红移中值将是 每秒一万八千公里。 调查将抽样调查800平方 在天空的一个球面度的区域上分布的度数。 大量的调查将揭示银河系的特征 以最大的实际规模进行分配。 高 调查的抽样密度将详细揭示 星系中的星团和空洞的分布 宇宙

A redshift survey of galaxies will enable astronomers to infer the physical structure of our Universe out to large distances. The redshift of the light from galaxies depends on the distance to the galaxy. A new galaxy redshift survey of unprecedented size will be carried out. The galaxy sample will be selected photo-electrically using the scanning Charge-Coupled Device (CCD) camera at the Las Campanas 1-meter telescope in Chile. Redshifts for 20,000 galaxies will be obtained using multiple-object spectroscopy at the wide-field Cassegrain focus of the Las Campanas 2.5-meter telescope. The median galaxy redshift will be 18,000 kilometers per seconds. The survey will sample 800 square degrees distributed over an area of one steradian of the sky. The large volume of the survey will reveal features in the galaxy distribution at the largest practicable scales. The high sampling density of the survey will reveal in detail the nature of clusters and voids in the galaxy distribution within our Universe.