2dF-SDSS LRG与QSO（2SLAQ）发光红星系巡天
天体物理学
2009-05-29 v1
摘要
我们介绍了一项对近15,000个候选中等红移发光红星系（LRGs）的光谱巡天，这些星系亮于i=19.8，使用英澳望远镜上的2dF仪器观测。目标从斯隆数字巡天（SDSS）中通过测光选择，位于覆盖180平方度的两条狭窄赤道带上。92%的目标获得了可靠的红移，且选择效率非常高：超过90%的目标红移在0.45至0.8之间。在约11,000个红色星系中，超过80%具有纯吸收线光谱，与被动演化的老年恒星族一致。描述了LRGs的红移、测光和空间分布。2SLAQ数据将从2006年中期起公开发布，为观测宇宙学和星系演化研究提供强大资源。
引用
@article{arxiv.astro-ph/0607631,
title = {The 2dF-SDSS LRG and QSO (2SLAQ) Luminous Red Galaxy Survey},
author = {R. Cannon and M. Drinkwater and A. Edge and D. Eisenstein and R. C. Nichol and P. Outram and K. Pimbblet and R. De Propris and I. Roseboom and David Wake and P. Allen and J. Bland-Hawthorn and T. Bridges and D. Carson and K. Chiu and M. Colless and W. Couch and S. Croom and S. Driver and S. Fine and P. Hewett and J Loveday and N. Ross and E. M. Sadler and T. Shanks and R. Sharp and J. Allyn Smith and C. Stoughton and Peter Weilbacher and R. J. Brunner and A. Meiksin and D. P. Schneider},
journal= {arXiv preprint arXiv:astro-ph/0607631},
year = {2009}
}
备注
Accepted for publication in MNRAS. 21 pages. The 2SLAQ LRG data discussed in this paper will become public when the paper appears in the journal. See http://www.2slaq.info for more information on the survey and data release, and a higher resolution version of the paper