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  1. The Atacama Cosmology Telescope: DR6 constraints on extended cosmological models

    Publication
    We use new cosmic microwave background (CMB) primary temperature and polarization anisotropy measurements from the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) to test foundational assumptions of …

  2. The Atacama Cosmology Telescope: DR6 power spectra, likelihoods and \(\Lambda\)CDM parameters

    Publication
    We present power spectra of the cosmic microwave background (CMB) anisotropy in temperature and polarization, measured from the Data Release 6 maps made from Atacama Cosmology Telescope (ACT …

  3. The Atacama Cosmology Telescope: DR6 maps

    Publication
    We present Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) maps of the Cosmic Microwave Background temperature and polarization anisotropy at arcminute resolution over three frequency bands centered …

  4. The Atacama Cosmology Telescope: Systematic Transient Search of Single Observation Maps

    Publication
    We conduct a systematic search for astrophysical transients using data from the Atacama Cosmology Telescope. The data were taken from 2017 to 2022 in three frequency bands spanning …

  5. Optical modeling of systematic uncertainties in detector polarization angles for the Atacama Cosmology Telescope

    Publication
    We present an estimate of the Atacama Cosmology Telescope (ACT) detector polarization angle systematic uncertainty from optics perturbation analysis using polarization-sensitive ray tracing in CODE V optical …

  6. Simons Observatory: Observatory Scheduler and Automated Data Processing

    Publication
    The Simons Observatory (SO) is a next-generation ground-based telescope located in the Atacama Desert in Chile, designed to map the cosmic microwave background (CMB) with unprecedented …

  7. The Simons Observatory: Beam Characterization for the Small Aperture Telescopes

    Publication
    We use time-domain simulations of Jupiter observations to test and develop a beam reconstruction pipeline for the Simons Observatory Small Aperture Telescopes. The method relies on a …

  8. The Atacama Cosmology Telescope: Constraints on Pre-Recombination Early Dark Energy

    Publication
    The early dark energy (EDE) scenario aims to increase the value of the Hubble constant (H0) inferred from cosmic microwave background (CMB) data over that found in ΛCDM …

  9. CMB-S4: Forecasting Constraints on Primordial Gravitational Waves

    Publication
    CMB-S4---the next-generation ground-based cosmic microwave background (CMB) experiment---is set to significantly advance the sensitivity of CMB measurements and enhance our understanding of the …

  10. Atacama Cosmology Telescope: Dusty star-forming galaxies and active galactic nuclei in the equatorial survey

    Publication
    We present a catalog of 510 radio-loud active galactic nuclei (AGNs, primarily blazars) and 287 dusty star-forming galaxies (DSFGs) detected by the Atacama Cosmology Telescope at …

  11. CMB-HD: Astro2020 RFI Response

    Publication
    CMB-HD is a proposed ultra-deep (0.5 uk-arcmin), high-resolution (15 arcseconds) millimeter-wave survey over half the sky that would answer many outstanding questions …

  12. CMB-S4 Decadal Survey APC White Paper

    Publication
    We provide an overview of the science case, instrument configuration and project plan for the next-generation ground-based cosmic microwave background experiment CMB-S4, for consideration by …

  13. CMB-HD: An Ultra-Deep, High-Resolution Millimeter-Wave Survey Over Half the Sky

    Publication
    A millimeter-wave survey over half the sky, that spans frequencies in the range of 30 to 350 GHz, and that is both an order of magnitude deeper …