The SDSS Quasar Survey

斯隆数字巡天（SDSS）类星体巡天完成后，将覆盖四分之一的天球，并在红移范围0到5.5之间识别出超过10万个类星体。每个类星体将有一个精确的位置，在五个宽频带的数字测光，图像形态，和广泛覆盖的数字光谱。面积覆盖、灵敏度、光度精度、宽波长覆盖和无线电选择的结合，使这成为一项独特而强大的类星体调查。该项目既包括当前稳定生产和及时发布高质量易用的数据产品，也包括利用SDSS类星体样本进行科学调查。主要的结果将是未来许多年光学选择的发光类星体的确定光度函数。其他研究包括类星体光谱能量分布对红移和光度的依赖，以及宿主星系的性质。这些数据产品将引起天文学界很大一部分人的极大兴趣，而且由于这项研究提供的质量控制，这些数据产品将更加有用。参与的学生和初级研究人员不仅将获得科学培训，而且还将获得使用大型数据库的经验。这项工作将继续包括在面向公众和高中科学教师的活动中。

AST-0607634SchneiderThe Sloan Digital Sky Survey (SDSS) Quasar Survey, when completed, will cover a quarter of the celestial sphere and should identify well over 100,000 quasars in the redshift range 0 to 5.5. Each quasar will have an accurate position, digital photometry in five broad bands, image morphology, and a wide coverage digital spectrum. The combination of areal coverage, sensitivity, photometric accuracy, broad wavelength coverage, and radio selection, make this a uniquely powerful quasar survey. This project covers both the current steady production and timely release of high quality easy-to-use data products, and scientific investigations with the SDSS quasar sample. The primary outcome will be the definitive luminosity function for many years to come for optically selected, luminous quasars. Other studies include the dependence of the quasar spectral energy distribution on redshift and luminosity, and the properties of host galaxies.The data products will be of great interest to large sections of the astronomical community, and far more useful because of the quality control provided by this study. Involved students and junior researchers will acquire not only scientific training but also experience with very large databases. The work will continue to be included in activities for the public and for high school science teachers.