The CMB in HD: The Low-noise High-resolution Frontier

Date & Time


Flatiron Institute, 162 Fifth Avenue

The CMB still contains a wealth of information about the cosmology and fundamental physics of our Universe. Unlocking all the information likely necessitates opening up a new window of CMB observations over a significant portion of the sky (~10%) that is of much lower noise (0.1 uK-arcmin) and higher resolution (10 to 20 arcsec) than previous CMB surveys. Such ultra-deep, high-resolution CMB measurements could potentially provide a novel way to map small scale dark matter, allowing, for example, a new probe of dark matter’s particle properties. They would also open a new window on galaxy cluster physics through the thermal and kinetic SZ effects and high-z cluster detection, and on extragalactic mm/submm source populations. In addition, such observations would push the boundaries of our knowledge about the early Universe, dark energy, reionization, and galaxy evolution.

The aim of this workshop is to explore the science gain of and instrumental paths forward for such an ultra-deep, high-resolution CMB survey. We will bring together theorists exploring this frontier of CMB measurements as well as instrumentalists working to make high-resolution CMB surveys a reality, via, for example, the Green Bank Telescope ( or AtLAST ( One goal of the workshop will be the drafting of one or more science white papers for the Astro2020 Decadal highlighting the new science gain from opening up this new regime of CMB observations.

If you are interested in attending please fill out the form linked here by November 9: We will accommodate as many as possible given space limitations.

For a detailed schedule of the workshop go here.

  • Participantsplus--large
    Francis-Yan Cyr-RacineHarvard University
    Kendrick SmithPerimeter Institute
    Simone FerraroLBNL
    Matthew JohnsonPerimeter Institute/York University
    Daan MeerburgCambridge
    Nicholas BattagliaCornell University
    Eric BaxterUniversity of Pennsylvania
    David SpergelFlatiron Institute
    Alexander van EngelenCITA
    Steven WhiteGreen Bank Observatory
    Charles RomeroUniversity of Pennsylvania
    Colin HillIAS/CCA
    Tristan SmithSwarthmore College
    Selim HotinliImperial College London
    Emmanuel Schaan Lawrence Berkeley National Laboratory
    Stephen FeeneyFlatiron Institute
    Simon DickerUniversity of Pennsylvania
    Moritz MunchmeyerPerimeter Institute
    Bhuvnesh JainBhuvnesh Jain
    James G. BartlettAPC - Universití© Paris Diderot
    Kaustuv BasuUniversity of Bonn
    Asantha CoorayUC Irvine
    Kev AbazajianUC Irvine
    George M. FullerUCSD
    Luke DennyFlorida State University
    Sara SimonUniversity of Michigan
    Evan GrohsUC Berkeley
    Grace ChesmoreUniversity of Michigan
    Theodore MacioceCalifornia Institute of Technology
    Srinivasan RaghunathanUniversity of Melbourne
    Johannes HubmayrNIST
    Brad JohnsonColumbia University
    David FrayerGreen Bank Observatory
    Mathew MadhavacherilPrinceton University
    Tom CrawfordUChicago / KICP
    Pavel MotlochCanadian Institute for Theoretical Astrophysics, University of Toronto
    Farnik NikakhtarUniversity of Pennsylvania
    Simon ForemanCanadian Institute for Theoretical Astrophysics
    Pete BarryANL
    Hy TracCarnegie Mellon University
    Victor ChanUniversity of Toronto
    Alex LaguëUniversity of Toronto
    Dominic BeckAPC Paris, CNRS
    Daisuke NagaiYale University
    Doyeon Avery KimColumbia University
    Erminia CalabreseCardiff University
    Blake SherwinUniversity of Cambridge
    Dongwon 'DW' HanStony Brook University
    Gil HolderUniversity of Illinois at Urbana-Champaign
    Joel MeyersSouthern Methodist University
    Neelima SehgalCCA/Stony Brook University
    Tony MroczkowskiEuropean Southern Observatory
    Luca Di MascoloMPA

Organized by:
Gil Holder (University of Illinois at Urbana-Champaign)
Joel Meyers (Southern Methodist University)
Tony Mroczkowski (European Southern Observatory)
Neelima Sehgal (CCA/Stony Brook University)

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