Two-year Cosmology Large Angular Scale Surveyor (CLASS) Observations: A Measurement of Circular Polarization at 40 GHz

@article{Padilla2019TwoyearCL,
  title={Two-year Cosmology Large Angular Scale Surveyor (CLASS) Observations: A Measurement of Circular Polarization at 40 GHz},
  author={Ivan L. Padilla and Joseph Eimer and Yunyang Li and Graeme E. Addison and Aamir M Ali and John W. Appel and Charles L. Bennett and Ricardo Bustos and Michael K. Brewer and Man Leong Chan and David T. Chuss and Joseph Cleary and Jullianna D. Couto and Sumit Dahal and Kevin L. Denis and Rolando Dunner and Thomas Essinger-Hileman and P. Flux'a and Saianeesh K. Haridas and Kathleen Harrington and Jeffrey Iuliano and John Karakla and Tobias A. Marriage and Nathan J. Miller and Carolina N'unez and Lucas P. Parker and Matthew A. Petroff and Rodrigo A. Reeves and Karwan Rostem and Robert W. Stevens and Deniz A. N. Valle and Duncan J. Watts and Janet L. Weiland and Edward J. Wollack and Zhilei Xu},
  journal={The Astrophysical Journal},
  year={2019},
  volume={889}
}
We report measurements of circular polarization from the first two years of observation with the 40 GHz polarimeter of the Cosmology Large Angular Scale Surveyor (CLASS). CLASS is conducting a multi-frequency survey covering 75% of the sky from the Atacama Desert designed to measure the cosmic microwave background (CMB) linear E and B polarization on angular scales 1° ≲ θ ≤ 90°, corresponding to a multipole range of 2 ≤ ℓ ≲ 200. The modulation technology enabling measurements of linear… 

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The Cosmology Large Angular Scale Surveyor (CLASS) is an experiment to measure the signature of a gravitationalwave background from inflation in the polarization of the cosmic microwave background

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The Cosmology Large Angular Scale Surveyor (CLASS) instrument will measure the polarization of the cosmic microwave background at 40, 90, and 150 GHz from Cerro Toco in the Atacama desert of northern

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The Cosmology Large Angular Scale Surveyor (CLASS) experiment aims to map the polarization of the Cosmic Microwave Background (CMB) at angular scales larger than a few degrees. Operating from Cerro

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The Cosmology Large Angular Scale Surveyor (CLASS) is mapping the polarization of the cosmic microwave background (CMB) at large angular scales (2 < ℓ ≲ 200) in search of a primordial gravitational

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