{"paper":{"title":"Spectroscopic Target Selection for the Sloan Digital Sky Survey: The Luminous Red Galaxy Sample","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. J. Connolly, A. S. Szalay, B. Yanny, D. E. Riechart, D. H. Weinberg, D. J. Eisenstein, D. J. Schlegel, D. L. Tucker, D. P. Schneider, D. Vanden Berk, D. W. Hogg, F. J. Castander, G. R. Knapp, J. Annis, J. E. Gunn, M. A. Strauss, M. Bernardi, M. Fukugita, M. Postman, M. Richmond, M. Subbarao, M. S. Vogeley, N. A. Bahcall, R. C. Nichol, R. H. Lupton, S. Burles, V. Narayanan, Z. Ivezic","submitted_at":"2001-08-09T00:27:06Z","abstract_excerpt":"We describe the target selection and resulting properties of a spectroscopic sample of luminous, red galaxies (LRG) from the imaging data of the Sloan Digital Sky Survey (SDSS). These galaxies are selected on the basis of color and magnitude to yield a sample of luminous, intrinsically red galaxies that extends fainter and further than the main flux-limited portion of the SDSS galaxy spectroscopic sample. The sample is designed to impose a passively-evolving luminosity and rest-frame color cut to a redshift of 0.38. Additional, yet more luminous, red galaxies are included to a redshift of 0.5."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0108153","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0108153/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}