activity
20062026
most citedCMB-S4 Science Case, Reference Design, and Project Plan

443 citations · 1.6k across the 47 of their papers we have counts for

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Showing astro-ph.COShow all

11 papers · 1 filter

astro-ph.CO2026

Improved Constraints on Cosmic Microwave Background Circular Polarization with CLASS

Thomas Essinger-Hileman, Caleigh Ryan, Yunyang Li +25

We present improved constraints on circular polarization in the cosmic microwave background (CMB) from the Cosmology Large Angular Scale Surveyor (CLASS) experiment using data at 9…

astro-ph.CO2025

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

Yunyang Li, Joseph Eimer, John Appel +34

We present measurements of large-scale cosmic microwave background (CMB) E-mode polarization from the Cosmology Large Angular Scale Surveyor (CLASS) 90 GHz data. Using 115 det-yr o…

astro-ph.CO2024

Sensitivity-Improved Polarization Maps at 40 GHz with CLASS and WMAP data

Rui Shi, John W. Appel, Charles L. Bennett +18

Improved polarization measurements at frequencies below 70 GHz with degree-level angular resolution are crucial for advancing our understanding of the Galactic synchrotron radiatio…

astro-ph.CO2023★ 1 cited

CLASS Angular Power Spectra and Map-Component Analysis for 40 GHz Observations through 2022

Joseph R. Eimer, Yunyang Li, Michael K. Brewer +31

Measurement of the largest angular scale () features of the cosmic microwave background (CMB) polarization is a powerful way to constrain the optical depth to reionizati…

astro-ph.CO2023★ 1 cited

CLASS Data Pipeline and Maps for 40 GHz Observations through 2022

Yunyang Li, Joseph Eimer, Keisuke Osumi +33

The Cosmology Large Angular Scale Surveyor (CLASS) is a telescope array that observes the cosmic microwave background over 75\% of the sky from the Atacama Desert, Chile, at freque…

astro-ph.CO2022★ 13 cited

Testing CMB Anomalies in E-mode Polarization with Current and Future Data

Rui Shi, Tobias A. Marriage, John W. Appel +15

In this paper, we explore the power of the cosmic microwave background (CMB) polarization (E-mode) data to corroborate four potential anomalies in CMB temperature data: the lack of…