The 2dF-SDSS LRG and QSO (2SLAQ) Luminous Red Galaxy Survey

Cannon, R.

doi:10.1111/j.1365-2966.2006.10875.x

The 2dF-SDSS LRG and QSO (2SLAQ) Luminous Red Galaxy Survey

Journal Article · Sat Jul 01 04:00:00 EDT 2006 · Mon.Not.Roy.Astron.Soc.

DOI:https://doi.org/10.1111/j.1365-2966.2006.10875.x· OSTI ID:1861364

Cannon, R.

We present a spectroscopic survey of almost 15,000 candidate intermediate-redshift Luminous Red Galaxies (LRGs) brighter than i=19.8, observed with 2dF on the Anglo-Australian Telescope. The targets were selected photometrically from the Sloan Digital Sky Survey (SDSS) and lie along two narrow equatorial strips covering 180 sq deg. Reliable redshifts were obtained for 92% of the targets and the selection is very efficient: over 90% have redshifts between 0.45 and 0.8. More than 80% of the ~11,000 red galaxies have pure absorption-line spectra consistent with a passively-evolving old stellar population. The redshift, photometric and spatial distributions of the LRGs are described. The 2SLAQ data will be released publicly from mid-2006, providing a powerful resource for observational cosmology and the study of galaxy evolution.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

DOE Contract Number:: AC02-07CH11359

OSTI ID:: 1861364

Report Number(s):: FERMILAB-PUB-06-612-AE; arXiv:astro-ph/0607631; oai:inspirehep.net:722586

Journal Information:: Mon.Not.Roy.Astron.Soc., Journal Name: Mon.Not.Roy.Astron.Soc. Vol. 372

Country of Publication:: United States

Language:: English

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