Figure 8 from Constraints on Cosmology from the Cosmic Microwave Background Power Spectrum of the 2500 deg2 SPT-SZ Survey

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Constraints on Cosmology from the Cosmic Microwave Background Power Spectrum of the 2500 deg2 SPT-SZ Survey

Authors: Z. Hou, C. L. Reichardt, K. T. Story, B. Follin, R. Keisler, K. A. Aird, B. A. Benson, L. E. Bleem, J. E. Carlstrom, C. L. Chang, H.-M. Cho, T. M. Crawford, A. T. Crites, T. de Haan, R. de Putter, M. A. Dobbs, S. Dodelson, J. Dudley, E. M. George, N. W. Halverson, G. P. Holder, W. L. Holzapfel, S. Hoover, J. D. Hrubes, M. Joy, L. Knox, A. T. Lee, E. M. Leitch, M. Lueker, D. Luong-Van, J. J. McMahon, J. Mehl, S. S. Meyer, M. Millea, J. J. Mohr, T. E. Montroy, S. Padin, T. Plagge, C. Pryke, J. E. Ruhl, J. T. Sayre, K. K. Schaffer, L. Shaw, E. Shirokoff, H. G. Spieler, Z. Staniszewski, A. A. Stark, A. van Engelen, K. Vanderlinde, J. D. Vieira, R. Williamson, and O. Zahn

Hou et al. 2014 The Astrophysical Journal 782 74.

Provider: AAS Journals

Caption: Figure 8.

Constraints on ∑ m _ν from the CMB data degrade significantly when we decouple the tilt of the primordial power spectrum on small and large scales. The marginalized one-dimensional posteriors of ∑ m _ν from WMAP 7 (SPT+ WMAP 7) data are shown with the orange solid (black solid) line. The SPT data prefer a lower value of n _s than WMAP 7, which leads the CMB data to prefer higher ∑ m _ν. If the tilt of the primordial power law on small and large scales is decoupled, whether directly by introducing running (blue dashed line) or indirectly by freeing the damping scale with the introduction of Y _p (blue dot-dashed line), the shift toward higher neutrino masses in the CMB likelihood is substantially reduced.

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