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34 papers · 2 filters
Optimal CMB Lensing Reconstruction and Parameter Estimation with SPTpol Data
M. Millea, C. M. Daley, T-L. Chou +66
We perform the first simultaneous Bayesian parameter inference and optimal reconstruction of the gravitational lensing of the cosmic microwave background (CMB), using 100 deg o…
Don't cross the streams: caustics from Fuzzy Dark Matter
Neal Dalal, Jo Bovy, Lam Hui +1
We study how tidal streams from globular clusters may be used to constrain the mass of ultra-light dark matter particles, called `fuzzy' dark matter (FDM). A general feature of FDM…
BICEP / Keck XII: Constraints on axion-like polarization oscillations in the cosmic microwave background
Keck Collaboration, P. A. R. Ade, Z. Ahmed +79
We present a search for axion-like polarization oscillations in the cosmic microwave background (CMB) with observations from the Keck Array. A local axion field induces an all-sky,…
The Atacama Cosmology Telescope: Weighing distant clusters with the most ancient light
Mathew S. Madhavacheril, Cristóbal Sifón, Nicholas Battaglia +58
We use gravitational lensing of the cosmic microwave background (CMB) to measure the mass of the most distant blindly-selected sample of galaxy clusters on which a lensing measurem…
An emulator for the Lyman- forest in beyond-CDM cosmologies
Christian Pedersen, Andreu Font-Ribera, Keir K. Rogers +4
Interpreting observations of the Lyman- forest flux power spectrum requires interpolation between a small number of expensive simulations. We present a Gaussian process emulator…
A Demonstration of Improved Constraints on Primordial Gravitational Waves with Delensing
BICEP/Keck, SPTpol Collaborations, : +139
We present a constraint on the tensor-to-scalar ratio, , derived from measurements of cosmic microwave background (CMB) polarization -modes with "delensing," whereby the unce…