- Main
Erratum: “A Measurement of the Cosmic Microwave Background B-Mode Polarization Power Spectrum at Sub-degree Scales with POLARBEAR” (2014, ApJ, 794, 171)
- Ade, The Polarbear Collaboration PAR;
- Akiba, Y;
- Anthony, AE;
- Arnold, K;
- Atlas, M;
- Barron, D;
- Boettger, D;
- Borrill, J;
- Chapman, S;
- Chinone, Y;
- Dobbs, M;
- Elleflot, T;
- Errard, J;
- Fabbian, G;
- Feng, C;
- Flanigan, D;
- Gilbert, A;
- Grainger, W;
- Halverson, NW;
- Hasegawa, M;
- Hattori, K;
- Hazumi, M;
- Holzapfel, WL;
- Hori, Y;
- Howard, J;
- Hyland, P;
- Inoue, Y;
- Jaehnig, GC;
- Jaffe, AH;
- Keating, B;
- Kermish, Z;
- Keskitalo, R;
- Kisner, T;
- Le Jeune, M;
- Lee, AT;
- Leitch, EM;
- Linder, E;
- Lungu, M;
- Matsuda, F;
- Matsumura, T;
- Meng, X;
- Miller, NJ;
- Morii, H;
- Moyerman, S;
- Myers, MJ;
- Navaroli, M;
- Nishino, H;
- Orlando, A;
- Paar, H;
- Peloton, J;
- Poletti, D;
- Quealy, E;
- Rebeiz, G;
- Reichardt, CL;
- Richards, PL;
- Ross, C;
- Schanning, I;
- Schenck, DE;
- Sherwin, BD;
- Shimizu, A;
- Shimmin, C;
- Shimon, M;
- Siritanasak, P;
- Smecher, G;
- Spieler, H;
- Stebor, N;
- Steinbach, B;
- Stompor, R;
- Suzuki, A;
- Takakura, S;
- Tomaru, T;
- Wilson, B;
- Yadav, A;
- Zahn, O
- et al.
Published Web Location
https://doi.org/10.3847/1538-4357/aa8c70Abstract
We report an improved measurement of the cosmic microwave background B-mode polarization power spectrum with the Polarbear experiment at 150 GHz. By adding new data collected during the second season of observations (2013-2014) to re-analyzed data from the first season (2012-2013), we have reduced twofold the band-power uncertainties. The band powers are reported over angular multipoles 500 ≤ ℓ ≤ 2100, where the dominant B-mode signal is expected to be due to the gravitational lensing of E-modes. We reject the null hypothesis of no B-mode polarization at a confidence of 3.1σ including both statistical and systematic uncertainties. We test the consistency of the measured B-modes with the Λ Cold Dark Matter (ΛCDM) framework by fitting for a single lensing amplitude parameter A L = 0.60 +0.26-0.24(stat)+0.00-0.04 (inst) ± 0.14(foreground) ± 0.04(multi), where A L = 1 relative to the Planck 2015 best-fit model prediction. We obtain ±0.14(foreground) ±0.04(multi), where is the fiducial ΛCDM value.
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