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Cosmic microwave background constraints on the duration and timing of reionization from the South Pole Telescope
O. Zahn, C. L. Reichardt, L. Shaw +48
The epoch of reionization is a milestone of cosmological structure formation, marking the birth of the first objects massive enough to yield large numbers of ionizing photons. The…
A measurement of secondary cosmic microwave background anisotropies with two years of South Pole Telescope observations
C. L. Reichardt, L. Shaw, O. Zahn +46
We present the first three-frequency South Pole Telescope (SPT) cosmic microwave background (CMB) power spectra. The band powers presented here cover angular scales 2000 < ell < 94…
New limits on Early Dark Energy from the South Pole Telescope
Christian L. Reichardt, Roland de Putter, Oliver Zahn +1
We present new limits on early dark energy (EDE) from the cosmic microwave background (CMB) using data from the WMAP satellite on large angular scales and South Pole Telescope (SPT…
A Measurement of the Damping Tail of the Cosmic Microwave Background Power Spectrum with the South Pole Telescope
R. Keisler, C. L. Reichardt, K. A. Aird +46
We present a measurement of the angular power spectrum of the cosmic microwave background (CMB) using data from the South Pole Telescope (SPT). The data consist of 790 square degre…
How Massless Neutrinos Affect the Cosmic Microwave Background Damping Tail
Zhen Hou, Ryan Keisler, Lloyd Knox +2
We explore the physical origin and robustness of constraints on the energy density in relativistic species prior to and during recombination, often expressed as constraints on an e…