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Internal delensing of Cosmic Microwave Background polarization B-modes with the POLARBEAR experiment
- Publication Year :
- 2019
-
Abstract
- Using only cosmic microwave background polarization data from the POLARBEAR experiment, we measure $B$-mode polarization delensing on subdegree scales at more than $5\sigma$ significance. We achieve a 14% $B$-mode power variance reduction, the highest to date for internal delensing, and improve this result to 2% by applying for the first time an iterative maximum a posteriori delensing method. Our analysis demonstrates the capability of internal delensing as a means of improving constraints on inflationary models, paving the way for the optimal analysis of next-generation primordial $B$-mode experiments.<br />Comment: Matches version published in Physical Review Letters
Details
- Database :
- OAIster
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1363518244
- Document Type :
- Electronic Resource
- Full Text :
- https://doi.org/10.1103.PhysRevLett.124.131301