Journal article
Evidence for the Cross-correlation between Cosmic Microwave Background Polarization Lensing from Polarbear and Cosmic Shear from Subaru Hyper Suprime-Cam
T Namikawa, Y Chinone, H Miyatake, M Oguri, R Takahashi, A Kusaka, N Katayama, S Adachi, M Aguilar, H Aihara, A Ali, R Armstrong, K Arnold, C Baccigalupi, D Barron, D Beck, S Beckman, F Bianchini, D Boettger, J Borrill Show all
Astrophysical Journal | IOP Publishing Ltd | Published : 2019
Abstract
We present the first measurement of cross-correlation between the lensing potential, reconstructed from cosmic microwave background (CMB) polarization data, and the cosmic shear field from galaxy shapes. This measurement is made using data from the Polarbear CMB experiment and the Subaru Hyper Suprime-Cam (HSC) survey. By analyzing an 11 deg2 overlapping region, we reject the null hypothesis at 3.5σ and constrain the amplitude of the cross-spectrum to , where is the amplitude normalized with respect to the Planck 2018 prediction, based on the flat Λ cold dark matter cosmology. The first measurement of this cross-spectrum without relying on CMB temperature measurements is possible owing to th..
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Grants
Awarded by Horizon 2020 Framework Programme
Funding Acknowledgements
The Hyper Suprime-Cam (HSC) Collaboration includes the astronomical communities of Japan and Taiwan and Princeton University. The HSC instrumentation and software were developed by the National Astronomical Observatory of Japan (NAOJ), the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU), the University of Tokyo, the High Energy Accelerator Research Organization (KEK), the Academia Sinica Institute for Astronomy and Astrophysics in Taiwan (ASIAA), and Princeton University. Funding was contributed by the FIRST program from Japanese Cabinet Office, the Ministry of Education, Culture, Sports, Science and Technology (MEXT), the Japan Society for the Promotion of Science (JSPS), Japan Science and Technology Agency (JST), the Toray Science Foundation, NAOJ, Kavli IPMU, KEK, ASIAA, and Princeton University. The Pan-STARRS1 Surveys (PS1), which are used for the photometry and astrometry calibration, have been made possible through contributions of the Institute for Astronomy, the University of Hawaii, the Pan-STARRS Project Office, the Max-Planck Society and its participating institutes, the Max Planck Institute for Astronomy, Heidelberg and the Max Planck Institute for Extraterrestrial Physics, Garching, Johns Hopkins University, Durham University, the University of Edinburgh, Queen's University Belfast, the Harvard-Smithsonian Center for Astrophysics, the Las Cumbres Observatory Global Telescope Network Incorporated, the National Central University of Taiwan, the Space Telescope Science Institute, the National Aeronautics and Space Administration under grant No. NNX08AR22G issued through the Planetary Science Division of the NASA Science Mission Directorate, the National Science Foundation under grant No. AST-1238877, the University of Maryland, and Eotvos Lorand University (ELTE). The POLARBEAR project is funded by the National Science Foundation under grant Nos. AST-0618398 and AST-1212230. The James Ax Observatory operates in the Parque Astronomico Atacama in Northern Chile under the auspices of the Comision Nacional de Investigacion Cientifica y Tecnologica de Chile (CONICYT). The James Ax Observatory would not be possible without the support of CONICYT in Chile. All silicon-wafer-based technology for POLARBEAR was fabricated at the UCB Nanolab. This research used resources of the Central Computing System, owned and operated by the Computing Research Center at KEK, the HPCI system (Project ID: hp150132), and the National Energy Research Scientific Computing Center (NERSC), a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under contract No. DE-AC02-05CH11231. This work was supported in part by the World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan, and MEXT Grant-in-Aid for Scientific Research on Innovative Areas (JP15H05887, JP15H05891, JP15H05892, JP15H05893). In Japan, this work was supported by MEXT KAKENHI grant Nos. 21111002 and JP18H05539, JSPS KAKENHI grant Nos. JP26220709, JP24111715, JP26800125, and the JSPS Core-to-Core Program. In Italy, this work was supported by the RADIOFORE-GROUNDS grant of the European Union's Horizon 2020 research and innovation program (COMPET-05-2015, grant agreement No. 687312), as well as by the INDARK INFN Initiative and the COSMOS network of the Italian Space Agency. (cosmosnet. it). Support from the Ax Center for Experimental Cosmology is gratefully acknowledged. The KEK authors acknowledge support from KEK Cryogenics Science Center. The APC group acknowledges travel support from Labex UNIVEARTHS. The Melbourne group acknowledges support from the University of Melbourne and an Australian Research Council's Future Fellowship (FT150100074). Y.C. acknowledges the support from JSPS KAKENHI grant Nos. 18K13558 and 18H04347. T.N. acknowledges the support from the Ministry of Science and Technology (MOST), Taiwan, R.O.C., through the MOST research project grants (No. 107-2112-M-002-002-MY3). H.M. acknowledges the support from JSPS KAKENHI grant No. JP18H04350. M.O. acknowledges the support from JSPS KAKENHI grant No. JP18K03693. R.T. acknowledges the support from Grant-in-Aid for Scientific Research from the JSPS Promotion of Science (17H01131). Numerical computations were in part carried out on Cray XC50 at the Center for Computational Astrophysics, National Astronomical Observatory of Japan. A.K. acknowledges the support by the JSPS Leading Initiative for Excellent Young Researchers (LEADER) and by JSPS KAKENHI grant No. JP16K21744. M.A. acknowledges support from CONICYT UC Berkeley-Chile Seed grant (CLAS fund) No. 77047, Fondecyt project 1130777 and 1171811, the DFI postgraduate scholarship program, and the DFI Postgraduate Competitive Fund for Support in the Attendance to Scientific Events. G.F. acknowledges support from the European Research Council under the European Union's Seventh Framework Programme (FP/2007-2013)/ERC grant agreement No. 616170. F.M. acknowledges the support by the JSPS Fellowship (grant No. JP17F17025). J.S.S. is supported by the NSF Graduate Research Fellowship.