Late Universe Cosmology

Presentations

• Constraining cosmology with CMB lensing from ACT DR6+

  Oral-In-person

  March 17, 2026, 1:15 PM – March 17, 2026, 1:27 PM

  Publication: "Measurement of the CMB lensing power spectrum from ACT+Planck over 27,000 sq. deg. and implications for structure formation" Kim et al. (in prep)
  "LCDM Cosmological constraints from an ACT + Planck CMB lensing map over 27,000 sq. deg." Abril-Cabezas et al. (in prep)
  "Constraints on extensions to LCDM from an ACT + Planck CMB lensing map over 27,000 sq. deg." Qu et al. (in prep)

  Presenters

  • Joshua Kim

    • University of Pennsylvania

  Authors

  • Joshua Kim

    • University of Pennsylvania

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• Galaxy Clusters Selected by the Sunyaev-Zel'dovich Effect in the SPT-3G Main Survey

  Oral-In-person

  March 17, 2026, 1:27 PM – March 17, 2026, 1:39 PM

  Presenters

  • Lindsey Bleem

    • Argonne National Laboratory

  Authors

  • Lindsey Bleem

    • Argonne National Laboratory

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• Investigating the H₀ Tension Across Cosmic Epochs Using Dark Energy Frameworks

  Oral-In-person

  March 17, 2026, 1:39 PM – March 17, 2026, 1:51 PM

  Presenters

  • Upala Mukhopadhyay

    • University of Luxembourg

  Authors

  • Upala Mukhopadhyay

    • University of Luxembourg

  • Purba Mukherjee

    • Jamia Millia Islamia University

  • Alexandre Tkatchenko

    • University of Luxembourg

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• Persistent and serious challenge to the ΛCDM throne: Evidence for dynamical dark energy rising from combinations of different types of datasets

  Oral-In-person

  March 17, 2026, 1:51 PM – March 17, 2026, 2:03 PM

  Publication: arXiv:2507.22856

  Presenters

  • Mustapha Ishak

    • University of Texas at Dallas

  Authors

  • Mustapha Ishak

    • University of Texas at Dallas

  • Leonel Medina Varela

    • University of Texas at Dallas

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• Clustering of DESI galaxies split by thermal Sunyaev-Zeldovich effect

  Oral-In-person

  March 17, 2026, 2:03 PM – March 17, 2026, 2:15 PM

  Publication: Preprint https://arxiv.org/abs/2508.20904 published as https://doi.org/10.33232/001c.146033
  Planned follow-up publication

  Presenters

  • Michael Rashkovetskyi

    • The Ohio State University

  Authors

  • Michael Rashkovetskyi

    • The Ohio State University

  • Daniel Eisenstein

    • Center for Astrophysics | Harvard & Smithsonian

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• Dark Energy Explorers: Utilizing Human Labeling and Machine Learning to Understand Dark Energy

  Oral-In-person

  March 17, 2026, 2:15 PM – March 17, 2026, 2:27 PM

  Publication: Lindsay R. House et al 2024 ApJ 975 172, DOI 10.3847/1538-4357/ad782c
  Lindsay R. House et al 2023 ApJ 950, 2, DOI 10.3847/1538-4357/accdd0

  Presenters

  • Lindsay House

    • The University of Chicago

  Authors

  • Lindsay House

    • The University of Chicago

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• Simulation-based emulators for DESI galaxy clustering

  Oral-In-person

  March 17, 2026, 2:27 PM – March 17, 2026, 2:39 PM

  Presenters

  • Enrique Paillas

    • University of Arizona

  Authors

  • Enrique Paillas

    • University of Arizona

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• Unveiling Cosmic Structure: A Fractal Approach to a Possibly Isotropic Universe.

  Oral-In-person

  March 17, 2026, 2:39 PM – March 17, 2026, 2:51 PM

  Presenters

  • Rafael Estrada

    • University of Houston

  Authors

  • Rafael Estrada

    • University of Houston

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• A millimeter-wave view of the Last Journey simulation

  Oral-In-person

  March 17, 2026, 2:51 PM – March 17, 2026, 3:03 PM

  Presenters

  • Florian Kéruzoré

    • Argonne National Laboratory

  Authors

  • Florian Kéruzoré

    • Argonne National Laboratory

  • Maria Giulia Campitiello

    • Argonne National Laboratory

  • Patricia Larsen

    • Argonne National Laboratory

  • Lindsey Bleem

    • Argonne National Laboratory

  • Nick Frontiere

    • Argonne National Laboratory

  • JD Emberson

    • Argonne National Laboratory

  • Salman Habib

    • Argonne National Laboratory

  View abstract →