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Planck intermediate results. LI. Features in the cosmic microwave background temperature power spectrum and shifts in cosmological parameters
Planck Collaboration, N. Aghanim, Y. Akrami +150
The six parameters of the standard CDM model have best-fit values derived from the Planck temperature power spectrum that are shifted somewhat from the best-fit values derived f…
Planck intermediate results. XLVII. Planck constraints on reionization history
Planck Collaboration, R. Adam, N. Aghanim +163
We investigate constraints on cosmic reionization extracted from the Planck cosmic microwave background (CMB) data. We combine the Planck CMB anisotropy data in temperature with th…
Cosmology with Negative Absolute Temperatures
J. P. P. Vieira, Christian T. Byrnes, Antony Lewis
Negative absolute temperatures (NAT) are an exotic thermodynamical consequence of quantum physics which has been known since the 1950's (having been achieved in the lab on a number…