{"paper":{"title":"The KMOS Cluster Survey (KCS) I: The fundamental plane and the formation ages of cluster galaxies at redshift $1.4<z<1.6$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alessandra Beifiori, Audrey Galametz, David J. Wilman, Ian J. Lewis, Jeffrey C. C. Chan, John P. Stott, J. Trevor Mendel, Laura J. Prichard, Michael Wegner, Michele Cappellari, Ralf Bender, Ray Sharples, Roberto P. Saglia, Roger L. Davies, Russel Smith, Ryan C. W. Houghton","submitted_at":"2017-08-01T18:00:14Z","abstract_excerpt":"We present the analysis of the fundamental plane (FP) for a sample of 19 massive red-sequence galaxies ($M_{\\star} >4\\times10^{10} M_{\\odot}$) in 3 known overdensities at $1.39<z<1.61$ from the KMOS Cluster Survey, a guaranteed time program with spectroscopy from the K-band Multi-Object Spectrograph (KMOS) at the VLT and imaging from the Hubble Space Telescope. As expected, we find that the FP zero-point in $B$ band evolves with redshift, from the value 0.443 of Coma to $-0.10\\pm0.09$, $-0.19\\pm0.05$, $-0.29\\pm0.12$ for our clusters at $z=1.39$, $z=1.46$, and $z=1.61$, respectively. For the mo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.00454","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"}