{"paper":{"title":"The Growth of Cool Cores and Evolution of Cooling Properties in a Sample of 83 Galaxy Clusters at 0.3 < z < 1.2 Selected from the SPT-SZ Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. A. Stark, A. Clocchiatti, A. H. Gonzalez, A. Mantz, A. Rest, A. Saro, A. T. Crites, A. T. Lee, A. van Engelen, A. Vikhlinin, A. Zenteno, B. A. Benson, B. R. Saliwanchik, B. Stalder, C. Jones, C. L. Chang, C. L. Reichardt, C. Pryke, D. Gettings, D. Luong-Van, D. Nurgaliev, D. P. Marrone, E. D. Miller, E. M. George, E. M. Leitch, E. Shirokoff, F. W. High, G. P. Holder, H. G. Spieler, H. M. Cho, H. W. Lin, J. D. Hrubes, J. D. Vieira, J. E. Carlstrom, J. E. Ruhl, J. J. McMahon, J. J. Mohr, J. Liu, J. Mehl, J. P. Dudley, J. Ruel, J. Song, J. T. Sayre, K. A. Aird, K. K. Schaffer, K. Story, K. Vanderlinde, L. E. Bleem, L. Knox, L. Mocanu, M. A. Dobbs, M. Bayliss, M. Brodwin, M. D. Gladders, M. Joy, M. L. N. Ashby, M. Lueker, M. McDonald, M. W. Bautz, N. W. Halverson, O. Zahn, R. J. Foley, R. Keisler, R. Suhada, R. Williamson, S. A. Stanford, S. Bocquet, S. Desai, S. Hoover, S. Padin, S. S. Meyer, S. S. Murray, T. de Haan, T. E. Montroy, T. M. Crawford, T. Plagge, W. L. Holzapfel, W. R. Forman, Z. Staniszewski","submitted_at":"2013-05-13T20:00:00Z","abstract_excerpt":"We present first results on the cooling properties derived from Chandra X-ray observations of 83 high-redshift (0.3 < z < 1.2) massive galaxy clusters selected by their Sunyaev-Zel'dovich signature in the South Pole Telescope data. We measure each cluster's central cooling time, central entropy, and mass deposition rate, and compare to local cluster samples. We find no significant evolution from z~0 to z~1 in the distribution of these properties, suggesting that cooling in cluster cores is stable over long periods of time. We also find that the average cool core entropy profile in the inner ~1"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.2915","kind":"arxiv","version":2},"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"}