Sloan数字银河 surveys光谱目标选择：引星样本
天体物理学
2008-11-26 v1
摘要
我们描述了在Sloan数字银河 surveys中选择引星候选对象的算法。通过在"ugriz"宽带光度测量中的非星际颜色选择引星候选对象，并通过匹配未解决的源与FIRST射电目录。该自动化算法对z<5.8的引星敏感。也针对作为低红移引星候选对象的扩展源，以调查Active Galactic Nuclei（AGN）在亮度函数暗端的演化。几乎95%的已知引星被恢复（基于446平方度内1540颗引星）。总体完整性预计超过90%，而总体效率（引星:引星候选对象）优于65%。该选择算法针对i^*=19.1及更高红移的紫外过度引星，以及i^*=20.2及更高红移（z>3）引星，产生约每平方度18个候选对象。除了选择"normal"引星外，该算法的设计也能敏感地捕获异常性AGN，如Broad Absorption Line引星和强掩埋引星。
引用
@article{arxiv.astro-ph/0202251,
title = {Spectroscopic Target Selection in the Sloan Digital Sky Survey: The Quasar Sample},
author = {Gordon T. Richards and Xiaohui Fan and Heidi Jo Newberg and Michael A. Strauss and Daniel E. Vanden Berk and Donald P. Schneider and Brian Yanny and Adam Boucher and Scott Burles and Joshua A. Frieman and James E. Gunn and Patrick B. Hall and Zeljko Ivezic and Stephen Kent and Jon Loveday and Robert H. Lupton and Constance M. Rockosi and David J. Schlegel and Chris Stoughton and Mark SubbaRao and Donald G. York},
journal= {arXiv preprint arXiv:astro-ph/0202251},
year = {2008}
}
备注
62 pages, 15 figures (8 color), 8 tables. Accepted by AJ. For a version with higher quality color figures, see http://archive.stsci.edu/sdss/quasartarget/RichardsGT_qsotarget.preprint.ps