Cosmic Microwave Background

Presentations

• SPT-3G D1: CMB power spectra and constraints on ΛCDM parameters

  Oral-In-person

  March 18, 2026, 1:15 PM – March 18, 2026, 1:27 PM

  Publication: Camphuis et al., "SPT-3G D1: CMB temperature and polarization power spectra and cosmology from 2019 and 2020 observations of the SPT-3G Main field", PRD, submitted, arXiv:2506.20707;
  Khalife et al., "SPT-3G D1: Axion Early Dark Energy with CMB experiments and DESI", PRD, submitted, arXiv:2507.23355;
  Ge et al., "Cosmology From CMB Lensing and Delensed EE Power Spectra Using 2019-2020 SPT-3G Polarization Data", PRD 111 (2025) 083534, arXiv:2411.06000;
  Quan et al., "SPT-3G D1: Maps of the millimeter-wave sky from 2019 and 2020 observations of the SPT-3G Main field, in prep. as of Oct 2025

  Presenters

  • Wei Quan

    • Argonne National Laboratory

  Authors

  • Etienne Camphuis

    • Institute of Astrophysics in Paris

  • Wei Quan

    • Argonne National Laboratory

  • Lennart Balkenhol

    • Institute of Astrophysics in Paris

  • Ali Rida Khalife

    • Institute of Astrophysics in Paris

  • Fei Ge

    • University of California, Davis

  • Federica Guidi

    • Institute of Astrophysics in Paris

  • Nicholas Huang

    • University of California, Berkeley

  • Gabriel Lynch

    • University of California, Davis

  • Yuuki Omori

    • University of Chicago

  • Cynthis Trendafilova

    • Center for AstroPhysical Surveys, National Center for Supercomputing Applications

  View abstract →

• SPT-3G D1: cosmological constraints on ΛCDM extensions and consistency with DESI DR2 baryon acoustic oscillations

  Oral-In-person

  March 18, 2026, 1:27 PM – March 18, 2026, 1:39 PM

  Publication: Camphuis et al., "SPT-3G D1: CMB temperature and polarization power spectra and cosmology from 2019 and 2020 observations of the SPT-3G Main field", PRD, submitted, arXiv:2506.20707;
  Khalife et al., "SPT-3G D1: Axion Early Dark Energy with CMB experiments and DESI", PRD, submitted, arXiv:2507.23355;
  Ge et al., "Cosmology From CMB Lensing and Delensed EE Power Spectra Using 2019-2020 SPT-3G Polarization Data", PRD 111 (2025) 083534, arXiv:2411.06000;
  Quan et al., "SPT-3G D1: Maps of the millimeter-wave sky from 2019 and 2020 observations of the SPT-3G Main field, in prep. as of Oct 2025

  Presenters

  • Gabriel Lynch

    • University of California, Davis

  Authors

  • Gabriel Lynch

    • University of California, Davis

  • Etienne Camphuis

    • Institute of Astrophysics in Paris

  • Wei Quan

    • Argonne National Laboratory

  • Lennart Balkenhol

    • Institute of Astrophysics in Paris

  • Ali Rida Khalife

    • Institute of Astrophysics in Paris

  • Fei Ge

    • University of California, Davis

  • Federica Guidi

    • Institute of Astrophysics in Paris

  • Nicholas Huang

    • University of California, Berkeley

  • Yuuki Omori

    • University of Chicago

  • Cynthia Trendafilova

    • University of Texas at Austin

  View abstract →

• Probing Inflationary Physics with the South Pole Observatory

  Oral-In-person

  March 18, 2026, 1:39 PM – March 18, 2026, 1:51 PM

  Presenters

  • James Cheshire

    • Caltech

  Authors

  • James Cheshire

    • Caltech

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• Studies of the Effect of Crosstalk in Microwave Frequency Multiplexing Readout Systems for Cosmic Microwave Background Telescopes

  Oral-In-person

  March 18, 2026, 1:51 PM – March 18, 2026, 2:03 PM

  Presenters

  • Thomas Satterthwaite

    • Stanford University

  Authors

  • Thomas Satterthwaite

    • Stanford University

  • Zeeshan Ahmed

    • SLAC National Accelerator Laboratory

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• The Simons Observatory: Commissioning and Early Observations for the Mid-frequency Small Aperture Telescopes

  Oral-In-person

  March 18, 2026, 2:03 PM – March 18, 2026, 2:15 PM

  Presenters

  • Katie Harrington

    • Argonne National Laboratory

  Authors

  • Katie Harrington

    • Argonne National Laboratory

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• The Simons Observatory: Commissioning and Initial Science Observations of the Large Aperture Telescope

  Oral-In-person

  March 18, 2026, 2:15 PM – March 18, 2026, 2:27 PM

  Publication: Results will be published in The Simons Observatory: Commissioning of the Large Aperture Telescope; Orlowski-Scherer et.al, In prep.

  Presenters

  • John Orlowski-Scherer

    • University of Pennsylvania

  Authors

  • John Orlowski-Scherer

    • University of Pennsylvania

  • Saianeesh Haridas

    • University of Pennsylvania

  • Katie Harrington

    • Argonne National Laboratory

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• The Simons Observatory: Early Maps and Status of the Large Aperature Telescope

  Oral-In-person

  March 18, 2026, 2:27 PM – March 18, 2026, 2:39 PM

  Presenters

  • Saianeesh Haridas

    • University of Pennsylvania

  Authors

  • Saianeesh Haridas

    • University of Pennsylvania

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• Simons Observatory: Assessing and Modeling Foreground Complexity in CMB Analyses

  Oral-In-person

  March 18, 2026, 2:39 PM – March 18, 2026, 2:51 PM

  Publication: The Simons Observatory: Assessing the Impact of Dust Complexity on the Recovery of Primordial B-modes (arXiv:2508.00073)

  Presenters

  • Yiqi Liu

    • Princeton University

  Authors

  • Yiqi Liu

    • Princeton University

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• The Simons Observatory: Detector performance and noise characterization

  Oral-In-person

  March 18, 2026, 2:51 PM – March 18, 2026, 3:03 PM

  Presenters

  • Yudai Seino

    • Princeton University

  Authors

  • Yudai Seino

    • Princeton University

  View abstract →