{"paper":{"title":"Dark Energy Survey Year 1 Results: Cosmological Constraints from Cosmic Shear","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Alarcon, A. Amara, A. A. Plazas, A. Benoit-L\\'evy, A. Carnero Rosell, A. Choi, A. Drlica-Wagner, A. Fert\\'e, A. K. Romer, A. Refregier, A. R. Liddle, A. Roodman, A. R. Walker, A. Stebbins, B. Flaugher, B. Hoyle, B. Jain, B. Nord, B. Yanny, C. B. D'Andrea, C. Chang, C. Davis, C. E. Cunha, C. Krawiec, C. S\\'anchez, D. A. Goldstein, D. Brooks, D. Gruen, D. Huterer, D. J. James, D. Kirk, D. L. Burke, D. L. DePoy, D. L. Tucker, D. Petravick, D. Thomas, D. W. Gerdes, E. Baxter, E. Bertin, E. Buckley-Geer, E. Fernandez, E. Gaztanaga, E. Krause, E. M. Huff, E. Neilsen, E. Rozo, E. Sanchez, E. Sheldon, E. S. Rykoff, E. Suchyta, F. B. Abdalla, F. J. Castander, F. Menanteau, F. Sobreira, G. Gutierrez, G. M. Bernstein, G. Tarle, H. Lin, H. T. Diehl, I. Sevilla-Noarbe, J. Annis, J. Blazek, J. Carretero, J. DeRose, J. De Vicente, J. Elvin-Poole, J. Frieman, J. Garc\\'ia-Bellido, J. Gschwend, J. J. Mohr, J. L. Marshall, J. P. Dietrich, J. Peacock, J. Prat, J. Weller, J. Zuntz, K. Bechtol, K. Honscheid, K. Kuehn, L. F. Secco, L. N. da Costa, M. A. G. Maia, M. A. Troxel, M. Carrasco Kind, M. Crocce, M. D. Johnson, M. E. C. Swanson, M. Gatti, M. Jarvis, M. Lima, M. March, M. M. Rau, M. R. Becker, M. Sako, M. Schubnell, M. Smith, M. Soares-Santos, M. Wang, M. W. G. Johnson, N. Kokron, N. Kuropatkin, N. MacCrann, O. Friedrich, O. Lahav, P. Doel, P. Fosalba, P. Martini, P. Melchior, P. Vielzeuf, R. A. Gruendl, R. Cawthon, R. C. Nichol, R. C. Smith, R. H. Wechsler, R. Miquel, R. P. Rollins, R. Schindler, S. Allam, S. Desai, S. Dodelson, S. Kent, S. Kuhlmann, S. L. Bridle, S. Samuroff, T. F. Eifler, T. Giannantonio, T. Jeltema, T. Kacprzak, T. M. C. Abbott, T. N. Varga, T. S. Li, V. Scarpine, V. Vikram, W. G. Hartley, Y. Zhang (DES Collaboration)","submitted_at":"2017-08-04T14:52:35Z","abstract_excerpt":"We use 26 million galaxies from the Dark Energy Survey (DES) Year 1 shape catalogs over 1321 deg$^2$ of the sky to produce the most significant measurement of cosmic shear in a galaxy survey to date. We constrain cosmological parameters in both the flat $\\Lambda$CDM and $w$CDM models, while also varying the neutrino mass density. These results are shown to be robust using two independent shape catalogs, two independent \\photoz\\ calibration methods, and two independent analysis pipelines in a blind analysis. We find a 3.5\\% fractional uncertainty on $\\sigma_8(\\Omega_m/0.3)^{0.5} = 0.782^{+0.027"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.01538","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"}