{"paper":{"title":"The Atacama Cosmology Telescope: a measurement of the primordial power spectrum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Adam D. Hincks, Amir Hajian, Arthur Kosowsky, Blake Sherwin, Bruce Partridge, C. Sofia Carvalho, Danica Marsden, Daniel Swetz, David Spergel, Ed Wollack, Eric Switzer, Felipe Menanteau, Felipe Rojas, Graeme Addison, Jeff Klein, Joanna Dunkley, John P. Hughes, John William Appel, Jon Sievers, Joseph Fowler, J. Richard Bond, Kavilan Moodley, Kent Irwin, Lucas Parker, Lyman Page, Mark Devlin, Mark Halpern, Matthew Hasselfield, Matt Hilton, Michael D. Niemack, Michael R. Nolta, Neelima Sehgal, Patricio Gallardo, Ren\\'ee Hlozek, Robert Thornton, Rolando D\\\"unner, Sudeep Das, Suzanne Staggs, Thomas Essinger-Hileman, Tobias A. Marriage","submitted_at":"2011-05-24T20:40:51Z","abstract_excerpt":"We present constraints on the primordial power spectrum of adiabatic fluctuations using data from the 2008 Southern Survey of the Atacama Cosmology Telescope (ACT). The angular resolution of ACT provides sensitivity to scales beyond \\ell = 1000 for resolution of multiple peaks in the primordial temperature power spectrum, which enables us to probe the primordial power spectrum of adiabatic scalar perturbations with wavenumbers up to k \\simeq 0.2 Mpc^{-1}. We find no evidence for deviation from power-law fluctuations over two decades in scale. Matter fluctuations inferred from the primordial te"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.4887","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"}