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Lensed CMB power spectrum biases from masking extragalactic sources
G. Fabbian, J. Carron, A. Lewis +1
The cosmic microwave background (CMB) is gravitationally lensed by large-scale structure, which distorts observations of the primordial anisotropies in any given direction. Average…
The Simons Observatory: gain, bandpass and polarization-angle calibration requirements for B-mode searches
Maximilian H. Abitbol, David Alonso, Sara M. Simon +45
We quantify the calibration requirements for systematic uncertainties for next-generation ground-based observatories targeting the large-angle -mode polarization of the Cosmic M…
Limitations of CMB B-mode template delensing
Antón Baleato Lizancos, Anthony Challinor, Julien Carron
Efforts to detect a primordial -mode of CMB polarization generated by inflationary gravitational waves ought to mitigate the large variance associated with the -modes produce…
CMB-S4: Forecasting Constraints on Primordial Gravitational Waves
S4 Collaboration, Kevork Abazajian, Graeme E. Addison +233
CMB-S4---the next-generation ground-based cosmic microwave background (CMB) experiment---is set to significantly advance the sensitivity of CMB measurements and enhance our underst…
Impact of internal-delensing biases on searches for primordial B-modes of CMB polarisation
Antón Baleato Lizancos, Anthony Challinor, Julien Carron
Searches for the imprint of primordial gravitational waves in degree-scale CMB -mode polarisation data must account for significant contamination from gravitational lensing. For…