Detection of CMB-Cluster Lensing using Polarization Data from SPTpol
AffiliationUniv Arizona, Dept Phys
MetadataShow full item record
PublisherAMER PHYSICAL SOC
CitationRaghunathan, S., Patil, S., Baxter, E., Benson, B. A., Bleem, L. E., Crawford, T. M., ... & Whitehorn, N. (2019). Detection of CMB-Cluster Lensing using Polarization Data from SPTpol. Physical review letters, 123(18), 181301.
JournalPHYSICAL REVIEW LETTERS
RightsCopyright © 2019 American Physical Society.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at email@example.com.
AbstractWe report the first detection of gravitational lensing due to galaxy clusters using only the polarization of the cosmic microwave background (CMB). The lensing signal is obtained using a new estimator that extracts the lensing dipole signature from stacked images formed by rotating the cluster-centered Stokes QU map cutouts along the direction of the locally measured background CMB polarization gradient. Using data from the SPTpol 500 deg2 survey at the locations of roughly 18 000 clusters with richness λ≥10 from the Dark Energy Survey (DES) Year-3 full galaxy cluster catalog, we detect lensing at 4.8σ. The mean stacked mass of the selected sample is found to be (1.43±0.40)×1014M⊙ which is in good agreement with optical weak lensing based estimates using DES data and CMB-lensing based estimates using SPTpol temperature data. This measurement is a key first step for cluster cosmology with future low-noise CMB surveys, like CMB-S4, for which CMB polarization will be the primary channel for cluster lensing measurements.
VersionFinal published version
SponsorsLaby Foundation; Melbourne International Engagement Award; Laby Travel Bursary; NSFNational Science Foundation (NSF) [AST-1716965, CSSI-1835865]; Australian Research CouncilAustralian Research Council [DP150103208]; U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-AC02-06CH11357]; National Science FoundationNational Science Foundation (NSF) [AST-1138766, AST-1536171, PLR-1248097]; NSF Physics Frontier CenterNational Science Foundation (NSF) [PHY-1125897]; Kavli Foundation; Gordon and Betty Moore FoundationGordon and Betty Moore Foundation [GBMF 947]; Office of Science of the U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-AC02-05CH11231]; U.S. National Science FoundationNational Science Foundation (NSF); Ministry of Science and Education of SpainMinistry of Education and Science, Spain; Science and Technology Facilities Council of the United KingdomScience & Technology Facilities Council (STFC); Higher Education Funding Council for EnglandHigher Education Funding Council for England; National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign; Center for Cosmology and Astro-Particle Physics at the Ohio State UniversityOhio State University; Mitchell Institute for Fundamental Physics and Astronomy at Texas AM University; Financiadora de Estudos e ProjetosCiencia Tecnologia e Inovacao (FINEP); Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro; Conselho Nacional de Desenvolvimento Cientifico e TecnologicoNational Council for Scientific and Technological Development (CNPq); Deutsche ForschungsgemeinschaftGerman Research Foundation (DFG); Collaborating Institutions in the Dark Energy Survey; MINECO [AYA2015-71825, ESP2015-66861, FPA2015-68048, SEV-2016-0588, SEV-2016-0597, MDM-20150509]; CERCA program of the Generalitat de Catalunya; European Research CouncilEuropean Research Council (ERC) [240672, 291329, 306478]; Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO)Australian Research Council [CE110001020]; Brazilian Instituto Nacional de Ciencia e Tecnologia (INCT) e-Universe (CNPq)National Council for Scientific and Technological Development (CNPq) [465376/2014-2]; Fermi Research Alliance, LLC [DE-AC02-07CH11359]; U.S. Department of EnergyUnited States Department of Energy (DOE); Kavli Institute of Cosmological Physics at the University of Chicago; Ministerio da Ciencia, Tecnologia e Inovacao; European UnionEuropean Union (EU)