Fa%C3%BAndez_2020_ApJ_893_85.pdf (441.24 kB)
Measurement of the cosmic microwave background polarization lensing power spectrum from two years of POLARBEAR data
journal contribution
posted on 2023-06-21, 06:01 authored by M Aguilar Faúndez, K Arnold, C Baccigalupi, D Barron, D Beck, S Beckman, F Bianchini, Julien Carron, K Cheung, Y Chinone, H El Bouhargani, T Elle?ot, J Errard, Giulio Fabbian, C Feng, The Polarbear Collaboration,, others,We present a measurement of the gravitational lensing deflection power spectrum reconstructed with two seasons of cosmic microwave background polarization data from the POLARBEAR experiment. Observations were taken at 150 GHz from 2012 to 2014 and surveyed three patches of sky totaling 30 square degrees. We test the consistency of the lensing spectrum with a cold dark matter cosmology and reject the no-lensing hypothesis at a confidence of 10.9s, including statistical and systematic uncertainties. We observe a value of AL = 1.33 ± 0.32 (statistical) ±0.02 (systematic) ±0.07 (foreground) using all polarization lensing estimators, which corresponds to a 24% accurate measurement of the lensing amplitude. Compared to the analysis of the first- year data, we have improved the breadth of both the suite of null tests and the error terms included in the estimation of systematic contamination.
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- Published
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- Published version
Journal
Astrophysical JournalISSN
0004-637XPublisher
American Astronomical SocietyExternal DOI
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1Volume
893Page range
1-9Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2020-04-20First Open Access (FOA) Date
2020-04-20First Compliant Deposit (FCD) Date
2020-04-18Usage metrics
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