- Main
Internal Delensing of Cosmic Microwave Background Polarization B-Modes with the POLARBEAR Experiment
- Adachi, S;
- Faúndez, MAO Aguilar;
- Akiba, Y;
- Ali, A;
- Arnold, K;
- Baccigalupi, C;
- Barron, D;
- Beck, D;
- Bianchini, F;
- Borrill, J;
- Carron, J;
- Cheung, K;
- Chinone, Y;
- Crowley, K;
- Bouhargani, H El;
- Elleflot, T;
- Errard, J;
- Fabbian, G;
- Feng, C;
- Fujino, T;
- Goeckner-Wald, N;
- Hasegawa, M;
- Hazumi, M;
- Hill, CA;
- Howe, L;
- Katayama, N;
- Keating, B;
- Kikuchi, S;
- Kusaka, A;
- Lee, AT;
- Leon, D;
- Linder, E;
- Lowry, LN;
- Matsuda, F;
- Matsumura, T;
- Minami, Y;
- Namikawa, T;
- Navaroli, M;
- Nishino, H;
- Peloton, J;
- Pham, ATP;
- Poletti, D;
- Puglisi, G;
- Reichardt, CL;
- Segawa, Y;
- Sherwin, BD;
- Silva-Feaver, M;
- Siritanasak, P;
- Stompor, R;
- Tajima, O;
- Takatori, S;
- Tanabe, D;
- Teply, GP;
- Vergès, C
- et al.
Published Web Location
https://doi.org/10.1103/physrevlett.124.131301Abstract
Using only cosmic microwave background polarization data from the polarbear experiment, we measure B-mode polarization delensing on subdegree scales at more than 5σ significance. We achieve a 14% B-mode power variance reduction, the highest to date for internal delensing, and improve this result to 22% 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.
Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.
Main Content
Enter the password to open this PDF file:
-
-
-
-
-
-
-
-
-
-
-
-
-
-