{"paper":{"title":"Spectroscopic Confirmation of Five Galaxy Clusters at z > 1.25 in the 2500 sq. deg. SPT-SZ Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A.A. Stark, A.B. Mantz, A.H. Gonzalez, A. Saro, A. von der Linden, B.A. Benson, B. Stalder, C.L. Reichardt, D.E. Applegate, E. Bulbul, G. Khullar, H. Hoekstra, I. Chiu, J. Hlavacek-Larrondo, J.P. Dietrich, K. Sharon, L.E. Bleem, M.B. Bayliss, M. Brodwin, M.D. Gladders, M.L.N. Ashby, M. McDonald, R. Capasso, R.E.A. Canning, S.A. Stanford, S. Bocquet, S. Patil, S.W. Allen, T. de Haan, T.M. Crawford, V. Strazzullo, W.L. Holzapfel","submitted_at":"2018-06-05T23:35:58Z","abstract_excerpt":"We present spectroscopic confirmation of five galaxy clusters at $1.25 < \\textit{z} < 1.5$, discovered in the $2500$ deg$^{2}$ South Pole Telescope Sunyaev-Zel'dovich (SPT-SZ) survey. These clusters, taken from a mass-limited sample with a nearly redshift independent selection function, have multi-wavelength follow-up imaging data from the X-ray to near-infrared, and currently form the most homogeneous massive high-redshift cluster sample known. We identify $44$ member galaxies, along with $25$ field galaxies, among the five clusters, and describe the full set of observations and data products"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.01962","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":""},"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"}