CMB B-mode Plot Data Sources
Here is a text file containing the data points
used to generate the plot. The data are for l(l+1)Cl/2π,
and are supplied in μK2.
- The Atacama Cosmology Telescope: CMB Polarization at 200 < l < 9000
Naess, Sigurd, et.al. 2014, JCAP, 10, 007. ADS
The plotted limit for each bin was calculated from the part of the Gaussian likelihood function corresponding to C_l > 0.
- BICEP2/Keck Array X: Constraints on Primordial Gravitational Waves using Planck, WMAP, and New BICEP2/Keck
Observations through the 2015 Season, Keck Array, BICEP2 Collaborations 2018, astro-ph
Plotted points are the CMB component from a decomposition of the BB spectrum into CMB, dust,
and synchrotron components. For the first bin, the CMB BB value is zero so the 95% confidence upper limit is plotted.
A Joint Analysis of BICEP2/Keck Array and Planck Data
BICEP2/Keck, et.al., astro-ph
Plotted points are the dust-subtracted B-mode power as shown in figure 12 of the joint analysis paper and
the plotted uncertainties are from the lensed-LambdaCDM+noise+dust simulations. The uncertainty values were
provided by C. Pryke. For the first bin where the dust-subtracted BB is negative, we plot a 95% confidence upper limit
calculated from the part of the Gaussian likelihood function corresponding to C_l > 0.
- A Measurement of the CMB EE Spectrum from the 2003 Flight of BOOMERANG
T.E. Montroy, et al., 2006, ApJ, 647, 813M
Plotted limits are max(0,BB) + 2*sigma_BB. BB and sigma_BB from NA pipeline results
in Table 1 of Montroy et al., also in
New Measurements of Fine-Scale CMB Polarization Power Spectra from CAPMAP at Both 40 and 90 GHz
CAPMAP Collaboration, et.al., 2008, ApJ, 684, 771B
BB limits from Figure 18 of this paper were provided by C. Bischoff, CAPMAP_95pc_BB_limits.dat.
Implications of the Cosmic Background Imager Polarization Data
J.L. Sievers, et al., 2007, ApJ, 660, 976S
Plotted limits are max(0,BB) + 2*sigma_BB
Wu et al. 2007, ApJ, 665, 55
lmin, lmax, 95% upper limit: 151, 693, 90.25 uK^2
A Measurement of the Cosmic Microwave Background B-Mode Polarization Power Spectrum at Sub-Degree Scales from 2 years
of POLARBEAR Data,
The POLARBEAR Collaboration, astro-ph
The plotted data are POLARBEAR bandpowers from Pipeline A given in their Table 4 and the plotted error bars
show statistical uncertainties only.
Improved measurements of the temperature and polarization of the CMB from QUaD
The QUaD collaboration, et.al., 2009, ApJ, 705, 978B
ADS / astro-ph
- Measurements of Sub-degree B-mode Polarization in the Cosmic Microwave Background from 100 Square Degrees of SPTpol Data
Keisler, R., et.al.,
lowest l bin:
Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Power Spectra and WMAP-Derived Parameters
Larson, D., et.al., 2011, ApJS, 192, 16L
reprint (0.7 MB) /
preprint (569 KB) /
bundled figures (123 KB) /
individual figures /
lmin, lmax, 95% upper limit: 2, 7, 0.055 uK^2
higher l bins: