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

collaborators

49 papers

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.IM2026

Detectors for CLASS-W2: The second 90 GHz telescope of the Cosmology Large Angular Scale Surveyor

John W. Appel, Kyuyoung Bae, Charles L. Bennett +26

The Cosmology Large Angular Scale Surveyor (CLASS) is measuring the Cosmic Microwave Background (CMB) polarization anisotropy on the largest angular scales (>1 degree) to probe the…

astro-ph.IM2025

Secondary standards in the UKIRT faint standard fields

Marek Górski, Grzegorz Pietrzyński, Paulina Karczmarek +8

We present precise J- and K-band photometric measurements for 128 near-infrared secondary standard stars, located in the 19 UKIRT/MKO primary faint standard fields. The data were c…

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.IM2024★ 1 cited

High-Efficiency and Low-Noise Detectors for the Upgraded CLASS 90 GHz Focal Plane

Carolina Núñez, John W. Appel, Rahul Datta +22

We present the in-lab and on-sky performance for the upgraded 90 GHz focal plane of the Cosmology Large Angular Scale Surveyor (CLASS), which had four of its seven detector wafers…

astro-ph.IM2024

Design and characterization of a 60-cm reflective half-wave plate for the CLASS 90 GHz band telescope

Rui Shi, Michael K. Brewer, Carol Yan Yan Chan +14

Front-end polarization modulation enables improved polarization measurement stability by modulating the targeted signal above the low-frequency drifts associated with atmosph…