A Measurement of the Largest-scale CMB E-mode Polarization with CLASS

A Measurement of the Largest-scale CMB E-mode Polarization with CLASS

We present measurements of large-scale cosmic microwave background E -mode polarization from the Cosmology Large Angular Scale Surveyor 90 GHz data. Using 115 det-yr of observations collected through 2024 with a variable-delay polarization modulator, we achieved a polarization sensitivity of $82\,\m...

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Bibliographic Details
Main Authors: Yunyang Li, Joseph R. Eimer, John W. Appel, Charles L. Bennett, Michael K. Brewer, Sarah Marie Bruno, Ricardo Bustos, Carol Yan Yan Chan, David T. Chuss, Joseph Cleary, Sumit Dahal, Rahul Datta, Jullianna Denes Couto, Kevin L. Denis, Rolando Dünner, Thomas Essinger-Hileman, Kathleen Harrington, Kyle Helson, Johannes Hubmayr, Jeffrey Iuliano, John Karakla, Tobias A. Marriage, Nathan J. Miller, Carolina Morales Perez, Lucas P. Parker, Matthew A. Petroff, Rodrigo A. Reeves, Karwan Rostem, Caleigh Ryan, Rui Shi, Koji Shukawa, Deniz A. N. Valle, Duncan J. Watts, Janet L. Weiland, Edward J. Wollack, Zhilei Xu, Lingzhen Zeng
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:The Astrophysical Journal
Subjects:
Cosmic microwave background radiation
Observational cosmology
Polarimeters
Reionization
Online Access:https://doi.org/10.3847/1538-4357/adc723
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