标题： 斯隆数字巡天 显示英文标题

标题： The Sloan Digital Sky Survey

摘要： 斯隆数字天空调查（SDSS）将在北银河帽区域对π立体角进行数字光度和光谱调查。 使用漂移扫描模式的CCD探测器阵列将在五个滤光带中对天空成像，达到r' ~ 23的极限星等。 从成像调查中选择10^6个星系、10^5个类星体以及选定的恒星样本进行光谱观测。 此外，还将进行一个较小（225平方度）、更深的南天调查，其亮度比北天调查暗约2.0星等，并将包含大量关于变源、超新星和自行的信息。 我们描述了该调查的当前状态，该调查最近已实现首次观测，并展望了其在限制宇宙学模型方面的前景。 显示英文摘要

摘要： The Sloan Digital Sky Survey (SDSS) will carry out a digital photometric and spectroscopic survey over pi steradians in the northern Galactic cap. An array of CCD detectors used in drift-scan mode will image the sky in five passbands to a limiting magnitude of r' ~ 23. Selected from the imaging survey, 10^6 galaxies, 10^5 quasars and selected samples of stars will be observed spectroscopically. In addition, a smaller (225 deg^2), deeper, southern survey will reach ~2.0 magnitudes fainter and will contain a wealth of information about variable sources, supernovae and proper motions. We describe the current status of the survey, which recently saw first light, and its prospects for constraining cosmological models.