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dc.contributor.authorSherwin, Blakeen
dc.contributor.authorVan Engelen, Aen
dc.contributor.authorSehgal, Nen
dc.contributor.authorMadhavacheril, Men
dc.contributor.authorAddison, GEen
dc.contributor.authorAiola, Sen
dc.contributor.authorAllison, Ren
dc.contributor.authorBattaglia, Nen
dc.contributor.authorBecker, DTen
dc.contributor.authorBeall, JAen
dc.contributor.authorBond, JRen
dc.contributor.authorCalabrese, Een
dc.contributor.authorDatta, Ren
dc.contributor.authorDevlin, MJen
dc.contributor.authorDünner, Ren
dc.contributor.authorDunkley, Jen
dc.contributor.authorFox, AEen
dc.contributor.authorGallardo, Pen
dc.contributor.authorHalpern, Men
dc.contributor.authorHasselfield, Men
dc.contributor.authorHenderson, Sen
dc.contributor.authorHill, JCen
dc.contributor.authorHilton, GCen
dc.contributor.authorHubmayr, Jen
dc.contributor.authorHughes, JPen
dc.contributor.authorHincks, ADen
dc.contributor.authorHlozek, Ren
dc.contributor.authorHuffenberger, KMen
dc.contributor.authorKoopman, Ben
dc.contributor.authorKosowsky, Aen
dc.contributor.authorLouis, Ten
dc.contributor.authorMaurin, Len
dc.contributor.authorMcMahon, Jen
dc.contributor.authorMoodley, Ken
dc.contributor.authorNaess, Sen
dc.contributor.authorNati, Fen
dc.contributor.authorNewburgh, Len
dc.contributor.authorNiemack, MDen
dc.contributor.authorPage, LAen
dc.contributor.authorSievers, Jen
dc.contributor.authorSpergel, DNen
dc.contributor.authorStaggs, STen
dc.contributor.authorThornton, RJen
dc.contributor.authorVan Lanen, Jen
dc.contributor.authorVavagiakis, Een
dc.contributor.authorWollack, EJen
dc.date.accessioned2019-09-03T09:19:00Z
dc.date.available2019-09-03T09:19:00Z
dc.date.issued2017-06-15en
dc.identifier.issn2470-0010
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/296347
dc.description.abstract© 2017 American Physical Society. We report a measurement of the power spectrum of cosmic microwave background (CMB) lensing from two seasons of Atacama Cosmology Telescope polarimeter (ACTPol) CMB data. The CMB lensing power spectrum is extracted from both temperature and polarization data using quadratic estimators. We obtain results that are consistent with the expectation from the best-fit Planck ΛCDM model over a range of multipoles L=80-2100, with an amplitude of lensing Alens=1.06±0.15(stat)±0.06(sys) relative to Planck. Our measurement of the CMB lensing power spectrum gives σ8Ωm0.25=0.643±0.054; including baryon acoustic oscillation scale data, we constrain the amplitude of density fluctuations to be σ8=0.831±0.053. We also update constraints on the neutrino mass sum. We verify our lensing measurement with a number of null tests and systematic checks, finding no evidence of significant systematic errors. This measurement relies on a small fraction of the ACTPol data already taken; more precise lensing results can therefore be expected from the full ACTPol data set.
dc.description.sponsorshipThis work was supported by the U.S. National Science Foundation (NSF) through Grants. No. AST-1440226, No. AST-0965625 and No. AST-0408698 for the ACT project, as well as Grants No. PHY-1214379 and No. PHY-0855887. Funding was also provided by Princeton University, the University of Pennsylvania, and a Canada Foundation for Innovation (CFI) grant to U. B. C. A. C. T. operates in the Parque Astronómico Atacama in northern Chile under the auspices of the Comisión Nacional de Investigación Científica y Tecnológica de Chile (CONICYT). Computations were performed on the GPC supercomputer at the SciNet HPC Consortium. SciNetis funded bytheCFI under the auspices of Compute Canada, the Government of Ontario, the Ontario Research Fund Research Excellence, and the University of Toronto. The development of multichroic detectors and lenses was supported by NASA Grants No. NNX13AE56G and No. NNX14AB58G. N. S. acknowledges support from NSF Grant No. 1513618. A. K. has been supported by NSF Grant No. AST-1312380. R. D. and L. M. thank CONICYT for Grants No. ALMA-CONICYT 31140004, No. FONDECYT 1141113, No. Anillo ACT-1417 and BASAL CATA. We also thank the Mishrahi Fund and the Wilkinson Fund for their generous support of the project.
dc.language.isoenen
dc.publisherAmerican Physical Society
dc.titleTwo-season Atacama Cosmology Telescope polarimeter lensing power spectrumen
dc.typeArticle
prism.issueIdentifier12en
prism.publicationDate2017en
prism.publicationNamePhysical Review Den
prism.volume95en
dc.identifier.doi10.17863/CAM.43393
dcterms.dateAccepted2017-04-07en
rioxxterms.versionofrecord10.1103/PhysRevD.95.123529en
rioxxterms.versionVoRen
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2017-06-15en
dc.identifier.eissn2470-0029
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idSCIENCE & TECHNOLOGY FACILITIES COUNCIL (ST/N000927/1)


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